Tick-borne typhus. Typhus Typhus after a tick bite

  • zoonoses - diseases inherent in animals and humans and transmitted from animal to person, from person to person are not transmitted - salmonellosis, rabies, tick-borne encephalitis.
  • Tick-borne viral encephalitis. Classification, etiology, epidemiology, clinic, diagnosis, treatment.
  • + Tick-borne typhus of North Asia

    (tick-borne rickettsiosis)- Acute natural focal disease from the group of rickettsioses, characterized by the presence of primary affect, an increase in regional lymph nodes and exanthema.

    Epidemiology.The main nstogni-com and transponderinfections are ixodid ticks of various genera (mainly ticks of the genus Dermacentor).

    An additional reservoir of the pathogen is small rodents (mice, rats, ground squirrels).

    Transfer mechanism:hemo-contact. Way of transfer -transmissible.

    Morbidity.Tick-borne rickettsiosis is common in Eastern and Western Siberia, the Far East, Azerbaijan, Kazakhstan, Turkmenistan, Tajikistan, Kyrgyzstan, Armenia, Mongolia, Pakistan.

    Seasonality.The disease is more often recorded in the spring-summer period.

    Pathogenesis.Entrance gateis the skin. The pathogen enters the human body with a tick bite. At the site of the entrance gate, rickettsiae multiply, causing inflammation in the form of primary affect. With the flow of lymph, the pathogen enters the regional the lymph nodes, lymphadenitis occurs. Then rickettsiae penetrate into the blood - ricketsemia and toxinemia develop with specific vascular granulomatosis.

    The clinical picture.Incubation periodis 3-7 days.

    Naked periodlasts 2-4 days. The disease begins acutely with a rise in body temperature to febrile numbers, chills, sweating, headache, and sometimes catarrhal phenomena. The patient notes sleep disturbance, decreased appetite. The child's face is puffy, hy-remixed. Lethargy and weakness are often observed. At the site of the tick bite, a primary affect occurs in the form of an inflammatory-necrotic focus covered with a brown crust. Its size is from 2 mm to 1 cm. Regional lymphadenitis develops.

    The peak period(from the onset of the rash until the end of the fever) lasts an average of 2 weeks. Remitting fever is accompanied by roseola-papular rashes on all areas of the skin (against an unchanged background). Changes in the cardiovascular system

    Rickettsioses. Marseilles fever -F-465

    ieMb i are characterized by bradycardia, hypotension. The defeat of the respiratory system appears as catarrh of the upper respiratory tract, bronchitis.

    With tick-borne rickettsiosis, the fever continues, depending on the severity of the disease, from 1 to 20 days. The rash fades 1 2,- 14 days from the onset of the disease. In the presence of hemorrhagic elements, pigmentation remains at the site of the rash, which disappears by the end of the convalescence period. The primary affect persists for 11-50 days from the onset of the disease. In its place, as a rule, pigmentation remains for some time.

    Taggingbenign disease.

    Complicationsdue to the addition of secondary microbial flora (otitis media, pneumonia, etc.)

    Diagnostics.Support-diagnostic symptoms of tick-borne typhus:

    - stay in an endemic focus;

    The presence of a primary affect;

    Regional lymphadenitis;

    Prolonged fever;

    Roseola-papular rash.

    Laboratory diagnostics.The diagnosis is confirmed serological tests (RSK and ΡΗΓΑ with diagnostics from rickettsia, indirect immunofluorescence reaction). Specific antibodies are detected from the 5-6th day of illness.

    Differential diagnosiscarried out with typhoid and typhus, other rickettsioses.

    Treatment.The drug of choice for e piotropic therapyis tetracycline. With its intolerance, Levomycetin is prescribed. The course of treatment is 5-7 days.

    Prevention.Necessary indi- vidual Dual protection of children from the attack of ticks (use repellents, protective clothing); ticks should be removed promptly. For prophylactic purposes, when a tick bite, it is recommended to prescribe tetracycline therapy to Urs.

    Tick-borne typhus of North Asia

    Definition .

    Synonyms: tick-borne rickettsiosis, tick-borne typhus fever, tick-borne typhus of the East, eastern typhus, tick-borne typhus of Siberia.

    Tick-borne typhus of Northern Asia is an acute benign natural focal obligate-transmissible rickettsiosis, characterized by the presence of primary affect, febrile reaction, maculopapular skin rash, enlargement and tenderness of regional lymph nodes.

    Historical background .

    The disease was first described by EI Mill in Primorye in 1936. The etiology, epidemiology and clinical picture have been studied in detail since 1938 by special expeditions led by E. N. Pavlovsky. The causative agent was isolated by OS Korshunova in 1938 from the cytoplasm of the cells of a necrotic focus on the patient's skin, which arose after the ixodic tick sucked (Yatsimirskaya-Krontovskaya MK, 1940).

    Etiology and epidemiology .

    The causative agent of tick-borne rickettsiosis RickettsiaSibirica belongs to the genus Rickettsia, family Rickettsiaceae, resembles other rickettsia, multiplies in the cytoplasm and nucleus of affected cells.

    In the foci of the disease, the circulation of the pathogen occurs between wild mammals and ixodid ticks ( Dermacentor, Haemaphysalis, Ixodes) - natural and main reservoirs R. sibirica... In ticks, transovarian and transphase transmission routes of rickettsia are observed. Human infection with tick-borne typhus occurs in natural foci through a bite infected tickswhose saliva contains rickettsia.

    Tick-borne typhus is a seasonal disease. The maximum incidence is observed in spring and early summer, which is due to the period of the greatest activity of ticks. In autumn, a second rise in morbidity is possible, determined by the second generation of arthropods. Sporadic illness occurs primarily in agricultural workers. The range of tick-borne typhus extends from the Urals to the shores of the Pacific Ocean, including the Far East, Transbaikalia, Siberia, Altai Territory, Kazakhstan and Kyrgyzstan, as well as the eastern part of Mongolia.

    Pathogenesis and pathological anatomy .

    At the site of the entrance gate of infection, a primary affect occurs - an inflammatory reaction skin with regional lymphadenitis. The causative agent is introduced into the endothelium of small vessels, causing inflammatory changes in them. At the same time, proliferative processes prevail over destructive ones with the development of endoperivasculitis, which explains the milder course of the disease in comparison with epidemic typhus. Rickettsaemia and toxinemia in tick-borne rickettsiosis cause symptoms of intoxication of the body.

    Clinical picture .

    Incubation period lasts 4-7 days. The disease begins acutely: chills appear, body temperature rises rapidly to 39–40 ° C. Less commonly, a prodromal period is observed in the form of malaise, headache and muscle pain, loss of appetite. Hyperemia of the face, neck, pharyngeal mucosa, as well as enanthema are often noted.

    At the end of the incubation period, at the site of the tick bite on the open parts of the body (scalp, neck, shoulder girdle), a primary affect occurs, which is a dense infiltrate, slightly painful on palpation. In its center is a necrotic crust of dark brown color, along the periphery there is a red rim of hyperemia. The infiltrate reaches 1–2 cm in diameter. Remitting fever, rarely of a persistent type, lasts an average of 8-10 days (sometimes 20) and ends lytically. Depending on the severity of the phenomena of intoxication, a light is distinguished, moderate and severe tick-borne rickettsiosis.

    Symptoms of lesion are leading in the clinical picture of the disease. nervous system in the form of persistent, sometimes excruciating headache, pain in the muscles and lower back. Unlike epidemic typhus with tick-borne typhus statustyphosus absent. Meningeal symptoms are rare. Conjunctivitis and scleritis, bradycardia and hypotension are noted.

    A persistent symptom is a rash that appears on the 2-5th day of illness. In most patients, it first appears on the trunk, and then spreads to the extremities, where it is localized mainly on the extensor surface and around the joints. With a profuse rash, elements of the rash can be on the face, palms, soles. The rash is polymorphic and has a predominantly roseolous-papular character. A more severe course of the disease is accompanied by hemorrhagic eruptions. After a few days, the rash gradually fades away, persisting the longest in the area lower limbs and buttocks in convalescents; in place of individual elements of the rash, brownish pigmentation persists for a long time.

    Moderate neutrophilic leukocytosis, lymphopenia are found in the blood, ESR is increased. The disease is benign, relapses are not observed.

    Diagnostics and differential diagnosis .

    Specific diagnostics involves the isolation of a pure culture R. sibirica from the patient's blood using guinea pigs (scrotal reaction). Serological diagnosis is carried out with the help of CSCs using a whole antigen from R. sibirica... Diagnostic titers are low (1: 40-1: 60). In the acute period on high level hemagglutinins (1: 800-1: 13 200) give positive results with RNGA. An additional method is the Weil-Felix test with the OX19 antigen, positive in 80% of patients.

    Differentiation of tick-borne rickettsiosis from epidemic typhus, Brill's disease, rat typhus and other rickettsioses from the group of tick-borne spotted fever is carried out.

    Treatment and prevention .

    Treatment is successfully carried out with tetracycline antibiotics in a hospital. Symptomatic agents are used along with antibiotics.

    Prevention is protection against tick attacks.

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    Typhus tick-borne

    Tick-borne typhus (North Asian rickettsiosis) - acute infectious disease with a benign course, characterized by the presence of primary affect, fever and skin rashes.

    Pathogen - Rickettsia prowazekii.

    Epidemiology. The source of the infection is the patient. The transmission mechanism of the pathogen is transmissive, it is realized through the bite of lice (mainly clothes).

    Clinic.

    Incubation period 6-22 days. The beginning is acute.

    Intoxication syndrome. Temperature 39 - 40 C for 7-14 days, often with characteristic "incisions" on the 4th, 8th, 12th days of illness; stubborn headache, weakness, anorexia, insomnia, anxiety, euphoria, agitation.

    Skin hot, dry, red lips, bright; hyperemia and puffiness of the face.

    Rash appears on the 4-5th day of illness, roseolous-pegechial, localized on the chest, lateral surfaces of the trunk, flexion surfaces of the limbs.

    Hemorrhagic syndrome. Enanthema Rosenberg - small-point hemorrhages on the mucous membrane of the soft palate and uvula, appearing on the 2nd - 3rd day of illness. The symptom of Chiari-Avtsyn - hemorrhages on the transitional fold of the lower eyelid - appears on the 3rd - 4th day. Endothelial symptoms: Rumpel-Leede-Konchalovsky, "tourniquet", "pinch".

    Meningoencephalitis manifestations: headache, dizziness, nausea, insomnia, tongue deviation, dysarthria, Govorov-Godelier symptom (jerky protrusion of the tongue), smoothness of the nasolabial fold. Possible mental disorders, delirium and meningeal symptoms.

    Hepatosplenomegaly.

    Complications: infectious toxic shock, infectious toxic encephalopathy, vascular complications: thrombosis, thromboembolism, thrombophlebitis, heart attacks, pneumonia.

    Differential diagnosis carried out with influenza, meningitis, hemorrhagic fevers, typhoid and paratyphoid fever, psittacosis, trichinosis, endovasculitis.

    Laboratory diagnostics.

    In the analysis of blood neutrophilic leukocytosis, eosinopenia, thrombocytopenia, moderately accelerated ESR. Serological diagnostics - RSK with Provachek's rickettsiae in a titer of 1/160 and higher, RNGA in a dilution of 1: 1000, ELISA.

    Treatment.

    Etiotropic therapy: the drug of choice is tetracycline 1.2-1.6 / day. during the entire febrile period and 2 days of normal temperature.

    Pathogenetic therapy: detoxifying, cardiovascular agents, anticoagulants. Symptomatic treatment: sedatives, antipsychotics, antipyretics, analgesics.

    Measures for patients and contact persons.

    Hospitalization.According to clinical indications.

    Insulation of contact.Not carried out.

    Conditions of discharge.Clinical recovery not earlier than 10 days from the onset of the disease.

    Admission to the team.After clinical recovery.

    Clinical examination: Recommended limitation physical activity within 3-6 months

    Specific prevention.

    Not developed.

    Non-specific prophylaxis.

    Deratization and disinsection in epidemic foci. Wearingclothing and clothing and body examinations to detect and remove ticks. The removed ticks are destroyed, the bite site is treated with solutions of iodine, lapis or alcohol.

    BRILL'S DISEASE

    Brill's disease is a relapse of epidemic typhus in those who have recovered from it after many years and is characterized by a sporadic disease in the absence of a source of infection, lice and foci. It is easier than typhus. Clinical manifestations, diagnosis and treatment see the "Typhus" section. Characterized by high titers of antibodies in the RNGA, CSC in the first days of the disease (antibodies of the immunoglobulin G class).

    • dermatitis;
    • hives;
    • pathological rash accompanied by itching.

    In addition to skin manifestations, insect bites provoke nervous disorders. A person has excessive irritability and rapid weight loss, sleep disturbances, appetite disappears.

    By conducting clinical researches, experts came to the conclusion that in humans, a decrease in immunity is directly related to the consequence of the bites of blood-sucking insects. Being carriers infectious diseases, insects contribute to the fact that in human body disease-causing forms penetrate, weakening the immune system.

    Fleas

    The human flea is very significant for medicine, since it is the carrier of the most dangerous diseases for humans - tularemia and plague, to which a person is absolutely susceptible. In addition, the adult flea is the intermediate host of the canine tapeworm.

    Lice

    Lice are highly fertile with a three-week life cycle. During this period, the female is able to lay nearly three hundred eggs.

    The presence of lice in the scalp is called head lice, popularly called vagrant's disease. FROM medical point lice are dangerous vectors of complex infectious diseases such as typhus and relapsing fever.

    Diptera

    Fly family

    Not all flies belong to the same type of annoying indoor insects. There are more than a dozen species, but for doctors, only those species that pose a threat to humans are considered important:

    Insect bites mostly affect children. It is they who become the objects of defeat by myiasis of varying degrees of intensity. With an unfavorable prognosis, there is an almost complete destruction of tissues in the bite focus. Typically it is soft tissue the front of the head and orbit. Such clinical picture can be fatal.

    Intestinal myiasis in humans occurs when the larvae of meat or house flies accidentally enter the digestive tract.

    Mites

    It's worth reading

    What is tick-borne typhus (rickettsiosis)

    Description of the disease

    Other names: Ixodoricketsiosis Asiatica, tick-borne typhus of Siberia (Ricketsiosis Sibirica), seaside rickettsiosis, etc. There are many names, but the essence is the same: this is a disease from the group of transmissible zoonoses, proceeding with an acute febrile syndrome. It is found in various places in various countries. In Russia, rickettsiosis is more common in the Far East and Eastern Siberia.

    Causative agent

    Tick-borne rickettsiosis is caused by the bacterium Rickettsia. It was discovered by the American pathologist Howard Taylor Ricketts in 1909. A year later, the doctor died of typhus, the study of which he devoted last years life. They decided to immortalize the bacteriologist, calling him the name of the bacterium.

    The rickettsia cell is shaped like a rod. But when the surrounding conditions change, the bacterium can become filamentous or acquire an irregular shape. The cell is protected by a microcapsule that prevents certain antibodies in the human blood from reaching the bacteria. The capsule is not resistant only to those antibodies that are formed after a person gets sick with tick-borne rickettsiosis. The disease creates immunity, so there are no relapses.

    Method of infection

    The infection is transmitted with blood, through invasive ticks. The insect bites through the skin, and with its saliva bacteria penetrate the lymphatic tract, and then into the bloodstream. This immediately leads to the development of lymphangitis (inflammation of the lymphatic vessels) and local lymphadenitis (inflammation of the lymph nodes).

    The transmissible (through blood) route is the main method of transmission of tick-borne rickettsiosis. But there are several more ways of infection:

    • blood transfusion - through a blood transfusion (rarely, since the symptoms of the disease are so obvious that no doctor will agree to take blood from such a donor);
    • transplacental - from mother to fetus (only if the woman became infected in the 1st trimester or 2-3 weeks before delivery);
    • aspiration - airborne (for such an infection, it is necessary that the saliva particles of an infected person or animal fall directly on the mucous membrane of another person);
    • contact - when rubbing rickettsia into the skin (for this, an infected animal must, for example, lick that part of a person's skin where he has a micro-wound);
    • alimentary - when the feces of an infected person or animal are swallowed (for example, together with fruits, berries).

    Symptoms

    The incubation period for tick-borne rickettsiosis is only 3-5 days. After this time, it is no longer possible not to notice the symptoms. The disease begins acutely: chills, a rapid rise in temperature to 39-40 degrees. Prodromal syndrome is sometimes present with general malaise, bone aches, and headaches. Such a fever lasts up to 8 days, in the last of which the temperature begins to decrease (before that it is possible to bring it down only for a few hours).

    Also during the febrile period, the person experiences muscle pain (especially in the lower back); his blood pressure decreases and his pulse slows down. Sometimes the liver enlarges, responding to the intoxication of the body. The appearance of an infected with tick-borne rickettsiosis also changes: his face swells, and his sclera turn red ("rabbit eyes").

    By the way! In children, the febrile stage of typhus is more acute, with vomiting and a critical temperature. But the duration of this period is almost 2 times less. Tick-borne rickettsiosis is most difficult for the elderly.

    There are problems with tick-borne rickettsiosis with the place of the tick bite. A dense infiltrate (small bulge) forms on the skin, covered with a brownish necrotic crust and surrounded by a border of hyperemia. The nearby lymph nodes are enlarged. Due to the fact that mites are more likely to stick to the neck or head (the most open areas), the main "blow" is taken by the cervical lymph nodes.

    A common symptom of tick-borne rickettsiosis is a skin rash all over the body. It resembles hives, but in a more contrasting color. In the late period of the disease, a punctate hemorrhage may occur in the center of each papule, which also indicates that the person has had typhus, and not another ailment.

    Diagnostics

    The symptomatology of tick-borne rickettsiosis is quite pronounced, so the diagnosis is usually not difficult. The survey begins with a survey and examination of the patient. A rash on the body reveals an infection, and the detection of a tick bite indicates that the disease has been transmitted by a transmission route. A blood test for infections can also show typhus.

    By the way! If tick-borne rickettsiosis is suspected, differential diagnosis is necessary, which will allow excluding diseases with similar symptoms: flu, water fever, etc.

    The most accurate identification of tick-borne rickettsiosis can be by a tick pulled out of the body. Doctors always warn that the removed insect should be taken to the laboratory so that specialists can determine its invasiveness. If you find a tick almost immediately after sucking, remove it (or it is better to go directly to a doctor) and take it for examination, you can quickly identify the infection and begin treatment without waiting for the onset of symptoms or deterioration of the condition.

    Treatment

    The tactics of treating a patient with tick-borne rickettsiosis requires not only taking certain medications, but also specific care. The more careful it is, the faster the person will recover, and the easier the course of the disease will be.

    Medicines

    The most common and topical treatment for typhus is tetracycline. It is an antibiotic wide range action capable of destroying the Rickettsia bacterium. The patient should start receiving the drug even before the temperature rises (if tick-borne rickettsiosis was detected in the tick that bit the person). Duration of tetracycline administration: 3 days. This is enough to kill the infection, but the symptoms of intoxication will persist for some time.

    The treatment of typhus with chloramphenicol is sometimes mentioned. This tactic is less successful, but it is appropriate when it is impossible to use antibiotics of the tetracycline group.

    Patient care

    Throughout the treatment, the patient should drink a lot and eat often in small portions. The liquid will allow you to quickly cleanse the blood and remove toxins from the body, and nutrition will restore strength. There is no special diet, but the food should be varied and high in calories.

    It is important to maintain the patient's oral hygiene. If a person himself is able to brush his teeth, that's great. Otherwise, you need to help him. A nurse or relative wraps a sterile bandage around the finger, moistens it in a boric acid solution (2%) and wipes the patient's teeth, gums, palate and cheeks from the inside. It is also advisable to wash the patient after each bowel movement, as well as at least once a day.

    The room where the infected with tick-borne rickettsiosis is located is regularly ventilated. The patient himself maintains bed rest all the time while the temperature is kept. It is allowed to get up if you have the strength to do so and only to go to the toilet.

    Attention! Active movements at high temperatures threaten a variety of complications, incl. on the heart.

    The prognosis of the disease is favorable. The antibiotic suppresses the action of the bacteria, and the temperature gradually decreases. If untreated, the disease also goes away, but with possible complications against the background of long-term high temperature and severe weakening of the patient. It can be pyelonephritis, bronchitis, myocarditis, thrombophlebitis. Immunity to tick-borne rickettsiosis remains for the rest of your life.

    Prevention

    Yet the most common route of infection with typhus is through a tick bite. Therefore, the main rule for the prevention of tick-borne rickettsiosis is protection from these insects. During the seasons of their activity (spring, summer), you need to be especially careful: visit endemic areas only in full ammunition (in special protective suits), use repellents, and make preventive vaccines.

    Prevention also consists in the obligatory hospitalization of an infected person in an infectious diseases department. Monitoring is also established for all persons with whom the patient contacted after infection.

    general description

    Ixodid ticks have a well-developed proboscis and a trunk with several pairs of legs. Before feeding, their size does not exceed a couple of millimeters - in females - 3-4 mm, in males - no more than 2.5 mm. But after saturation, their volumes increase tenfold.

    But if a person falls into their natural habitat, then they attack people.

    Infection routes

    After being bitten by an ixodid tick in circulatory system the host gets many different pathogens of dangerous diseases. Having reached the open area of \u200b\u200bthe skin, the mites in less than an hour firmly dig into their feeder.

    In this case, all of his mouth organs, together with the head, are under the skin. It is securely attached thanks to specially formulated saliva. As a result, the tick can be on the body from several hours to several days.

    Ixodid ticks are sometimes called encephalitis, as they are carriers of such dangerous diseases as tick-borne encephalitis, Crimean hemorrhagic fever, borreliosis, anaplasmosis, etc.

    In the first hours after the bite, the symptoms are characterized by the appearance of weakness, drowsiness, chills and aches in the joints. The more ticks are on the body, the more intensely the above signs will be expressed. People with allergies will have more pronounced symptoms.

    Among the first symptoms are noted: redness; increased body temperature (37-38 ° C); lowering pressure; tachycardia - an increase in heart rate to more than 60 per minute; the appearance of a rash and itching; enlarged lymph nodes in the area of \u200b\u200bthe bite. In addition, severe headaches, nausea and vomiting, shortness of breath, hallucinations, etc. may appear.

    Of particular importance is elevated temperature, since a fever that appears within 2-10 days after a tick bite can signal an infection.

    Drug treatment

    The most effective measure against infection with infections carried by ixodid ticks is preventive vaccinations, which is carried out one month before the onset of tick activity. In the absence of vaccination, an urgent immunoglobulin vaccination is an effective measure of protection.

    Not every bite leads to the development of disease. But if you are bitten by a tick, remove it, store it in some container and take it to the laboratory to determine if it was contagious.

    If the answer is yes, start treatment immediately! Infection can be avoided by immediately removing the insect correctly (completely).

    Treatment with folk remedies

    • Put onion gruel on a piece of clean cloth or gauze and bandage it to the wound;
    • It is recommended to put natural royal jelly under the tongue an hour before meals, you can mix it with honey;
    • To relieve redness and swelling, infusion of green walnuts is used. Chop the fruits, place in a jar and fill with vodka, leaving for a month. Take three times a day before meals with a small spoon;
    • Three times a day, you should take 15-20 drops of Rhodiola rosea tincture (golden root), diluted in a small amount of warm water. You can mix Rhodiola rosea root with wormwood in equal proportions. The mixture must be insisted on alcohol and taken in 25-40 drops, also diluting with a small portion of water.

    eastern fluke lanceolate fluke hepatic fluke Siberian fluke pinworms roundworm head lice lamblia Siberian fluke cat fluke blood flukes bovine and pork tapeworm

    general description

    There are three types of lice:

    • Head - live on the scalp;
    • Pubic - live in the groin area, can also live in the armpits and on the eyebrows;
    • Clothes - live in the folds of a person's clothing, only sometimes crawling onto the wearer's body to feed on his blood.

    These types of lice entail three corresponding types of head lice: pubic, head and body lice. There is also a possibility that these varieties form a mixed type of head lice, that is, with the cumulative symptoms of each of the subspecies of head lice.

    They reproduce by laying eggs called nits. They are attached to the hairs closer to the skin with the help of an adhesive substance, they have an oval shape (dimensions 0.8 x 0.3 mm). The female lays an average of 10 eggs per day. The period of development of an egg into an adult takes 12 days. If you do not take any measures, then the breeding cycle repeats every 3 weeks.

    Lice with their mouth organs pierce the skin of their host, suck out its blood and lay their eggs (nits). The most common head lice are found on the scalp. Head lice live on average 3 weeks, outside of their habitat they will live for a maximum of 1 week, nits a little more - 2 weeks.

    Lice feed on blood, which they suck from the scalp. A person can feel itching in 2-4 weeks. This is due to the fact that after piercing the skin head louse releases its saliva into the wound.

    Infection routes

    The appearance of head lice in humans is not always associated with poor personal hygiene. These insects can crawl from one head to another upon close contact.

    Pediculosis is especially widespread in kindergartens, schools, boarding schools, and others. in public places... Infection can also occur in transport, as well as when using personal items of an infected person, his comb, towel, hairpin or hat.

    Lice feed on blood, causing scalp irritation and itching - these are the first symptoms of lice. By combing the bite site, you can introduce an infection into the wounds, which can be a complication of head lice. At the same time, the skin becomes inflamed, redness appears, and body temperature may rise.

    Drug treatment

    The following medications are used to treat lice:

    • "Nittifor" - liquid solution or cream;
    • "Medifox", "Medifox-super" - gel, emulsion;
    • "Pair plus" - aerosol;
    • "Nyx" - cream;
    • "Permethrin ointment";
    • "Pedex" - lotion, gel;
    • “Nittifor - solution, cream;
    • "Pedilin" - shampoo;
    • "Nok" - shampoo;
    • "Khigiya" - shampoo.

    After treating the head according to the instructions, the hair must be carefully combed out with a frequent comb with a roller strung on it, and after 3 weeks, re-treatment, since during this time new lice may appear from the remaining nits.

    general description

    In nature, there are about 2000 species of fleas. These blood-sucking insects feed on the blood of mammals. Their scientific name Siphonaptera translates from Greek as "wingless pump", as they feed on the blood of mammals.

    The size of fleas is 2-8 mm in length, their body is compressed from the sides, there are three pairs of legs on the chest. The last pair of legs is significantly enlarged, which gives them their fantastic jumping ability. There are no wings.

    Color from light to dark brown. Due to the presence of a peculiar sensory organ they are able to capture air vibrations, heat, vibration, the presence of carbon dioxide, which indicates the presence of a potential source of food nearby - an animal or a person. However, fleas can spend several months without food.

    Fleas carry pathogens of a number of dangerous diseases:

    • Pseudotuberculous mycobacterium;
    • Pasteurellosis;
    • Tularemia;
    • Bubonic plague;
    • Intestinal yersiniosis;
    • Salmonellosis;
    • Brucellosis;
    • Epidemic typhus;
    • Helminthiasis;
    • Hepatitis B, C, etc.

    In 1942-1945, the Japanese used fleas as carriers of bacteriological weapons, with the help of which more than 400 thousand people were destroyed.

    Infection routes

    Fleas are brought into the room by pets, rats, mice, on which they fall from the dirt and foliage lying on the ground.

    Also, fleas can migrate from neighboring infected premises, from the basements of the building and entrances.

    A warm and humid environment is ideal for them. Cold temperatures slow down their life cycle, so summer is the perfect time for them to reproduce and develop.

    In the house, fleas live in cracks and breaks in the floor, joints of walls and floors, carpets, rugs, under skirting boards. In the presence of animals in the room, fleas are concentrated in the area of \u200b\u200btheir bedding, sleeping baskets and furniture. Adults live directly on a food source - a pet.

    Outwardly, flea bites are in many ways similar to mosquitoes, but they heal much longer. Within half an hour, the bite site swells, turns red and itches a lot. After one or two days, the site turns into a small wound or abscess and may even bleed.

    During a flea bite, saliva is injected into the wound, which contains an analgesic, which prevents the bite from being detected immediately, but later it becomes irritated and itchy.

    Drug treatment

    Fleas are resistant to most insecticides, however, preparations containing fipronil, fluvalinate, cypermethrin, cyfluthrin effectively act on them.

    Also, insecticidal preparations based on FOS (chlorophos, karbofos, fenthion), carbamate (propoxura), pyrethroids (permethrin, deltamethrin, cypermethrin, fenvalerate, cyphenothrin), neonicotinoids, etc. are used to combat fleas.

    Treatment with folk remedies

    To get rid of fleas in an apartment, you can use salt and soda, which is sprinkled on carpets and floor coverings, and then vacuumed, after which the vacuum cleaner must be thoroughly cleaned.

    Fleas cannot stand some smells: wormwood, pine needles, mint, eucalyptus, tobacco, tansy, garlic. Bunches of plants can be placed in potential flea habitats and they will go away.

    general description

    Science knows more than 30 thousand species of bugs, but bed bugs, which are also called sofa and linen bugs, are most common in houses and apartments.

    The life span of a bed bug is 1 year. During the year of her life, the female lays up to 500 eggs. The complete development cycle of a bug is 40 days from laying eggs. If bedbugs do not have enough food or at low temperatures they fall into suspended animation.

    Bedbugs crawl out at night to hunt (the bedbug feeds on human blood every 5-10 days, and drinks it twice as much as it weighs itself), bedbugs are especially active from 2 am to 6 am.

    During the day, they hide in carpets, blankets, pillows, mattresses, in upholstered furniture, climb into household appliances, in the cracks of the walls, under the wallpaper. Find shelter in dark and warm places. They love to live in pillows and mattresses, on which cats and dogs sleep, in the cages of other pets.

    Infection routes

    The appearance of bedbugs at home has nothing to do with the sanitary condition of the home. Indeed, the source of food for them, unlike cockroaches, domestic ants, and kitchen moths, is not food supplies, but the person himself.

    Bedbugs can enter the premises through doors, windows and vents in apartment buildings. They can come with you from hotels, old houses, vehicles where you spent the night; can even nest in newly acquired furniture and mattresses.

    Bedbugs can be brought in by visiting guests or unscrupulous workers living in places infested with bedbugs.

    Bed bugs can cause severe allergic reactionwhich manifests itself in the form of itching, blisters, severe swelling and redness. Sometimes, when combing, due to the addition of a secondary infection (especially if the immune system is weakened), pustules and inflammations can form, leaving scars and scars on the skin.

    In rare cases, a large number of bug bites cause iron deficiency anemia in children.

    Drug treatment

    When starting the fight against bedbugs, it is important to remember that they have the ability to spread very quickly. Therefore, if you live in an apartment building, then you need to fight with your neighbors. The most reliable way is to call the pest control service, but this will require you to leave your home for several days.

    Today there are powerful chemical agents for self-control of bed bugs in the apartment: "Delta Zone", "Executioner" (Germany), "Klopomor" (Russia), "Combat" (Korea), "Karbofos" (Russia), etc.

    We should not forget that what more effective remedy, the more toxic it is, therefore it is necessary to strictly follow the instructions and observe safety measures, and in case of massive processing, leave the apartment for several days, taking pets.

    Treatment with folk remedies

    • Use a steamer or a steam generator to walk over the upholstery of furniture and all the places where "traces" of bedbugs were found. Bedbugs die at a temperature of 50 ° C;
    • Freezing: extremely low temperature for bedbugs - below -20 ° C. Therefore, in severe frost, you can take out a sofa, mattress, etc. into the cold so that the bugs die. The room must also be frozen by leaving the windows open for several days.

    To quickly remove bedbugs at home, the following emulsion recipes are useful:

    • Mix 100 ml of kerosene and turpentine. Add 20 g of naphthalene to the resulting solution;
    • Pour 3 g into the container salicylic acid, pour 20 g of phenol and add 40 g of turpentine;
    • Mix 10 ml of turpentine in 100 ml of water. To obtain a caustic emulsion, add 15 ml of kerosene and about 30 g of green soap;
    • Combine 10 g of ammonia, 40 g of benzene and 150 g of denatured alcohol.

    The prepared solutions act in direct contact with bugs and eggs. Therefore, to destroy the population, it is necessary to pour the emulsion directly onto the pests and their habitat.

    general description

    Fungal diseases, in medicine called mycoses, have become widespread in our time.

    Fungal diseases of the body refer to superficial mycoses, among which are:

    • Keratomycosis - fungal infections the top layer of the skin. This group includes pityriasis versicolor, nodular trichosporia, erythrasma, axillary trichoidomycosis;
    • Dermatomycosis - deeper lesions of the skin caused by dermatophytes, yeasts or molds. Among them are epidermomycosis, microsporia, rubromycosis, trichophytosis, favus;
    • Candidiasis - a pathological lesion of the skin and mucous membranes with yeast-like fungi Candida albicans; secrete urogenital, candidiasis oral cavity, skin and nail, candidiasis of internal organs;

    Infection routes

    Keratomycosis is characterized by the localization of fungi in the stratum corneum of the epidermis without affecting the skin appendages, in the form of light brown spots, sometimes with a pinkish tinge, with a noticeable pityriasis peeling, most often on the neck, back, chest and shoulders. Inflammatory reactions of the skin during the period of exacerbation are not observed, as well as the feeling of discomfort.

    Dermatomycosis is characterized by the following symptoms: red, rounded spots on the skin; diaper rash, peeling; deformation, change in the structure of the nail; changes in the area of \u200b\u200binterdigital folds; itching in the affected area.

    Candidiasis cause various symptoms depending on localization.

    Drug treatment

    To treat the fungus on the body should be comprehensive. In order for the doctor to prescribe adequate therapy, it is necessary to undergo a study to determine the type of microorganism. Treatments for fungi include:

    • Local use of antimycotics (Mikozolon, Mikoseptin, Mikospor, Mycozoral, Nizoral, Kanizon, Mikosan, Mifungar, Lamisil, Mikoterbin, Candide, Triderm, Ekalin, etc.);
    • Systemic administration of antimycotics with fluconazole, itraconazole, miconazole, ketoconazole, clotrimazole, econazole or other imidazole and triazole derivatives (Diflucan, Forcan, Mikosist, Nizoral, Flucostat, etc.);
    • The use of antifungal antibiotics of the polyene series (nystatin, natamycin, amphotericin, levorin);
    • The use of glucocorticosteroid drugs;
    • Taking antihistamines, immunomodulators and multivitamins.
    • Physiotherapy procedures ( drug electrophoresis, pulse magnetotherapy, UHF-therapy).

    Treatment with folk remedies

    • Coffee baths can cope with fungus on the hands, feet and body (coffee is only natural, not soluble!);
    • Butter ointment with crushed garlic is applied to the affected areas of the body;
    • Wipe the affected areas on the body twice a day with an alcoholic 20% propolis solution;
    • The same with onion juice for 3-5 days;
    • Onions, pounded into gruel, are applied between the fingers for 30 minutes, after which the feet are washed in warm water;
    • Lubricate the affected skin alcohol tincture garlic;
    • Rub the wrinkles on the skin with lemon twice a day for a week.

    general description

    The microscopic subcutaneous mite demodex, when examined, is found in 90% of the population, but only in rare cases causes skin diseases: in people with weakened immune system, metabolic disorders, in old age and in children with pathologies of the gastrointestinal tract.

    Demodex combines many types of mites. Its two main types are:

    • Demodex brevis. The mite of this species living under the skin lives and reproduces in the ducts sebaceous glands... It has a short body of about 0.15 mm.
    • The human Demodex folliculorum mite is localized in hair follicles, has a long, elongated body up to 0.45 mm.

    It feeds on the secretion of the sebaceous glands or dead skin cells. Absorbs everything nutrients from the hair roots. The life cycle of a demodex tick is about two to three weeks, after which the individual dies, and the decay products begin to poison the body.

    Infection routes

    It is believed that the disease begins to manifest itself after stress and emotional stress, when the immune system weakens.

    The disease begins with the appearance of acne and irritation, peeling of the skin, redness. The following symptoms are noted:

    • The skin is bumpy, with an earthy-gray tinge, small hard calcified lumps form in the thickness of the skin;
    • Enlarged pores and increased sebum secretion, areas of the affected skin look moist, with a characteristic oily sheen;
    • A lot of acne appears, including purulent, weeping sores, rash, red spots, then acne appears on the chest, back and even thighs;
    • Sometimes there is an intolerable itching, worse at night, or a slight tickling sensation, as if someone is crawling on the skin;
    • Itching in the eyelids and scalp, increased loss of eyelashes and hair;
    • Itching in auricles and auditory canals;
    • The nose increases in size, sometimes significantly, the mimic movements of the muscles of the face are difficult.

    Drug treatment

    At the stage of exacerbation, antibiotics are prescribed for relief inflammatory processes, sedatives other than antidepressants. Immunocorrective therapy is being carried out. Treatment of demodicosis is complex.

    The treatment of Demodex by electrophoresis with moisturizing substances and a course of microdermabrasion have shown themselves well.

    👉Expert opinion about the drug.

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