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Some new cases in the Padua area, one death in Ferrara and, in total, a dozen cases of West Nile virus infection. Do not stop the contagion due to the presence of mosquitoes carrying the Nile virus which, anyway, experts remember, can lead to serious complications only in already fragile patients, affected heart or respiratory diseases. But in general, what are the symptoms of West Nile Contagion ?
Who in most cases "cheers" people who are bitten by a mosquito infected with this type of virus they do not show symptoms whereas in 20% among them, they present mild disorders such as fever and headaches for a few days. More serious forms may occur, as was the case for the 77-year-old man who died these days in the province of Ferrara, in case of previous health problems
In general, the symptoms of the virus West Nile are very similar to a pseudo-flu syndrome and, in extreme cases, can cause meningitis and meningoencephalitis or be fatal
What is West Nile?
West Nile Fever West Nile Fever – widespread in Africa, Western Asia, Europe, Australia, and America – is a disease caused by West Nile virus ( Wnv ), a virus of the family Flaviviridae isolated for the first time almost in the 1940s in Uganda, in the West Nile district.
A carry the virus are wild migratory birds and mosquitoes (more frequently Culex ), whose punctures are the main means of human transmission. Other documented means of infection, although rarer, are organ transplants, blood transfusions, and mother-to-fetus transmission during pregnancy
West Nile fever is transmitted not one person to another by contact with infected subjects and, in particular, can also infect other mammals, especially horses, but also dogs, cats, rabbits and others
Incubation and symptoms
The incubation period of the infected mosquito varies between 2 and 14 days, but it can also be 21 days in subjects who have deficiencies of the immune system.
Most infected persons have no mild symptoms or symptoms that may last for a few days, such as:
- fever
- headache
- nausea
- vomiting
- hypertrophic lymph nodes
- eruptions cutaneous
- redness of the eyes
- muscle pain
In the elderly and in the weakened, inve The symptoms may be more severe
The most severe symptoms (for 1 in 150 people) concern: [19659011] high fever
Approximately one in every thousand, the virus can cause lethal encephalitis [19659002] In all cases where you suspect an infection, contact your doctor who will prescribe the appropriate tests
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