Mosquitoes carrying pathogens such as West Nile virus, for instance ... instead used 10 level I ecoregions—or areas with similar ecosystems and comparable environmental resources—defined ...

Since its arrival in the USA, West Nile virus (WNV) has spread westward to a total of 43 states, resulting in 27,573 reported cases of infection. Patients with the following conditions/features ...

Severe infection with West Nile virus is a spreading problem worldwide that disproportionately affects those over age 50. And evidence is mounting that when the virus causes sickness, the long ...