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10 diseases transmitted from animals to humans


The groups of diseases that are transmitted to humans after contact with animals, there is a medical name of "zoonosis". On the planet there are about 850 of zoonoses. Some people almost never encountered, therefore there is a high probability that the doctors have not found many diseases.

As they say, is aware – is forearmed. We present you 10 of the diseases of the people who originally transferred to us from domestic or wild animals.

10. Rabies

In the first place is a disease with grim statistics of mortality. The rabies virus enters the human body through a bite or wound, obtained from a sick animal. The highest concentration of pathogen detected in the saliva and then in blood of a mammal. The incubation period of the disease is unpredictable, and sometimes it takes place completely asymptomatic. Meanwhile the virus gets into the human brain, leading to devastating and irreversible effects on the nervous system. Dysfunction of the brain is disrupted control of locomotor apparatus and respiratory system, resulting into death of man. Treatment Milwaukee Protocol allows 8% of cases to overcome the disease, even in the time of onset of symptoms, though for send this patient into an artificial coma and is being fed significant doses of antiviral medications.

9. Fever from cat scratch

As it turned out, harmless homemade humming can inadvertently be carriers of bacteria, which provokes the disease. Through the bite or scratch of a pathogen penetrates the human body, causing swelling and redness of the affected area, swelling of lymph nodes and even the appearance of a rash after 1-2 (up to 8) weeks. Often, the immunity by yourself to cope with a fever that does not require medical treatment. But people with weakened immune systems (including children and elderly patients) require therapy with antibiotics, otherwise possible complication of the disease to pneumonia and even comas.

8. Psittacosis

The virus gets to humans from wild and domestic birds. Normally, when the heating temperature of about 70°C, it dies within 15 minutes, which makes incidental use of sick birds to eat without consequences. But at low temperatures the pathogen remains active for up to 60 days, and it is resistant to drying. The disease affected about 100 species of birds, including geese, ducks, chickens, pheasants, parrots and pigeons. People become infected mostly through the air and feed the sick birds, as well as during post slaughter processing (cutting, plucking, etc.). The disease appears with symptoms of pneumonia: weakness and lethargy, shortness of breath, tube the mucous membrane of the nasopharynx, loss of appetite, etc.

7. Trichinosis

The causative agent performs the larvae of round worms. He gets in the human body through the digestive system (eating trihinelleze meat). After 2-3 days the larvae reach the Mature forms and begin to actively proliferate, clogging the lymphatic system of the gastrointestinal mucosa. Also larvae are found in the bloodstream, muscle fiber. The disease is manifested by aching and sharp pains in the muscles, increased swelling of the face, persistent eosinophilia in blood tests.

6. Toxocariasis

The disease is transmitted through direct contact with feces of infected wild (foxes) and domestic (dogs, cats) animals. Toxocariasis is a parasite that lays eggs in the host organism. They can remain dormant for a couple years, after which the larvae hatch and reach the region of the gastrointestinal tract. The patient observes a characteristic disease symptoms: cough, colic and bloating, constant headache, hyperthermia. If toxocariasis reached the eyes of the media, perhaps blurred vision and inflammation of the area, and in severe cases, there is complete blindness.

5. Visceral leishmaniasis

The disease is caused by a parasite that migrates through the bite of a female mosquito. Similar mosquito species live in temperate regions and the tropics. Every year this form of leishmaniasis are infected and 500 thousand, with 50 thousand killed. This human parasite is one of the most dangerous in history after a sensational malaria. In the absence of competent treatment, the mortality from the disease completely. The symptoms resemble malaria: febrile temperature, lethargy and weakness, anemia, increasing and changing the structure of the internal organs (spleen, liver). Also, patients may darken the surface of the skin, displays characteristic sores. Advanced forms of the parasite attacks the immune system and weakens it, making it vulnerable to other dangerous diseases such as to pneumonia.


This "new" disease was first diagnosed in Saudi Arabia 6 years ago. The carrier of the virus was the bat – grave miscarry. The pathogen enters the human body is not through direct contact with a sick bat, through an intermediate carrier, which are most often domestic and industrial animals. According to the statistics of 4-year-old outbreak diagnosed in 22 countries. Nevertheless, almost all cases were associated directly or indirectly with Saudi Arabia.

3. Tularemia

The disease is characteristic of the continent of North America. Is caused by the bacterium, which is transmitted from rabbit to man through an intermediate parasites (lice, mites). Also, the pathogen enters the body after contact with corpses of infected animals through infected food and water trough. The incubation period is about 3-5 days, after which symptoms develop: febrile temperature, diarrhea, headaches, fevers, arthritis, swelling of the lymph nodes and mucous membranes of the eyes, the expression on the skin and mouth, lethargy, etc. the Acute course of the disease in the absence of adequate antibiotic therapy leads to death of the patient. Mostly people die from dehydration, respiratory failure, leading to pneumonia or suffocation.

2. Q fever

One of the most virulent strains of bacteria, so theoretically the 1st colony to be enough to impress mankind. The pathogen is transmitted wild and domestic animals and other people (mostly sexually). From the animal the bacteria can get into contact with any bodily fluids (milk, saliva, semen, feces, etc.). The first symptoms appear within 3 weeks: hyperthermia, headaches, sweating, fever, photophobia. In the absence of a treatment of strong antibiotics are possible complications of the disease as hepatitis and pneumonia. Therapy usually takes from several months to a couple of years, after all, to prevent relapse, you must kill every single bacteria.

1. Toxoplasmosis

The simplest microorganism enters the human body after contact with a pet (cat, dog). The same animal picks up the pathogen from infected meat. Symptoms of the disease, as a rule, erased, making it difficult to timely treatment. The body forms tissue cysts, which are deposited in healthy tissues, striated muscles and even the brain. A pregnant woman can transmit the pathogen to the fetus, which after birth may develop jaundice, thrombocytopenia, maculopapular rash, lymphadenopathy, hydrocephalus, deafness, convulsions, etc.

Despite the rarity of these diseases in the clinic are hundreds and even thousands of patients. Some of the zoonotic diseases are easily treatable and involve the introduction of a special serum, while others quickly lead to death. Be careful when in contact with domestic and wild animals.

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