This section of National Biological Information Infrastructure (NBII) provides data, information, and maps related to outbreaks of the West Nile virus and mosquito-borne encephalitis in the United States.
Rabies (Lyssa) is one of the oldest known zoonotic diseases; an animal disease transmissible to humans. It is caused by rhabdoviruses of the genus Lyssavirus and can affect all mammals including humans. Transmission occurs when there is direct contact to infectious saliva, i.e. bites, scratches, broken skin. The incubation period ranges in general between 2 and 3 month (2 weeks to 6 years are reported) depending on the site of infliction, the amount of virus and the virus strain.
Feline immunodeficiency virus (FIV) and feline leukemia virus (FeLV) infections are major causes of death in cats. FIV is typically spread when one cat bites another; rarely does an infected mother infect her kittens. FIV and FeLV affect cats in similar ways, primarily by interfering with the immune system’s ability to ward off infections
