Omsk hemorrhagic fever

Omsk hemorrhagic fever
Omsk haemorrhagic fever - a viral disease, which are the carriers of ticks.It affects the nervous system and blood vessels.

Omsk hemorrhagic fever - an acute viral disease transmitted mainly by the bite of ticks Dermacentor genus.The main target of the virus - the vessels, the nervous system and the adrenal glands.

Omsk hemorrhagic fever: the path of infection

Pathogen Omsk hemorrhagic fever - a virus from the group of arboviruses, like a virus encephalitis.For this reason a vaccine against tick-borne encephalitis and successfully works against Omsk hemorrhagic fever.

Meet infected tick can be on the fringes, grassland, water meadows bordering the forest steppe areas.

This is due to the fact that the main natural reservoir of the virus - red voles, which generally parasitize young mites.As the prevalence and abundance of voles locals even predict the contamination of certain areas in the next 2-3 years.

second title Omsk hemorrhagic fever - "muskrat disease" because another favorite host ticks a

re muskrat (water rats).

Therefore, by the way, Omsk fever affects hunters on muskrats, even in winter - with the cutting of carcasses of animals.But still there are sheep and cows, hunted adult mites, as well as wolves, hedgehogs and hares, which are hosts for the ticks of all ages.

virus can be excreted in the urine and feces of infected animals, so there is a risk of infection through food and water, comes into contact with them.The virus, once in the body of water, remains active for 18-20 hours.Therefore, water from reservoirs in potentially dangerous areas to be sure to boil.

In rare cases, the virus can spread through mosquito bites of some species of the genera Aedes, Culex and Mansonia.

Omsk hemorrhagic fever: symptoms

virus makes itself felt within 2-14 days after the tick bite.High (up to 39-400S) temperature for 7-10 day is declining.However, every second patient's fever returns on 2-3rd week and lasts from 4 to 14 days.

patient feels weakness, headaches and muscle pain.A person turns red and becomes odulovatym face redden whites of the eyes may develop vomiting, nasal, pulmonary, intestinal or uterine bleeding.

This leads to loss of blood - thinning pulse, blood pressure falls.A characteristic feature of Omsk hemorrhagic fever - bleeding on the skin as a red-purple spots of various sizes (purpura).With the withering away of the affected tissues spots coloration changes to blue-black.

Omsk hemorrhagic fever can develop into pneumonia, meningitis (inflammation of the meninges), or meningoencephalitis (if the virus is able to get to the brain).According
appearances Omsk hemorrhagic fever may resemble dengue fever, yellow fever, septicemia and encephalitis.

for diagnostics performed serologic and virologic blood test.

Treatment Omsk hemorrhagic fever

Special drugs against the virus Omsk hemorrhagic fever does not exist.Doctors compensate for blood loss and carried out maintenance treatment.Fortunately, the death rate from Omsk hemorrhagic fever is much lower than that of the tick-borne encephalitis - a total of about 1%.

immunity in convalescents people persists for a long time, and because the virus Omsk hemorrhagic fever and encephalitis are very similar, the immune system acts against both diseases.

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