West Nile virus

or flavivirus genus

Most people who have this virus have no symptoms ,but some people have Febrile illness. One percent of people who have this virus have severe symptoms such as neurological illness and serious illness at any age. The virus has an outer protein capsids. It is a RNA virus. Its host is humans. It is a coccus shaped virus.
The West Nile virus is a mosquito-borne disease. The virus is found in the United States to Kunjin in Australia.