Human immunodeficiency virus (HIV) is a germ that causes a lifelong infection that slowly weakens the immune system. Though the infection is lifelong, medicines can keep the virus in check and help ...

The Epstein-Barr virus can cause neurological symptoms in some people. These symptoms may arise due to an infection of the nervous system or post-infection inflammation. Epstein-Barr virus (EBV) ...

Tick-borne encephalitis virus can infect the nervous system and cause life-threatening illness. Finding the cellular gateway ...

Two cases of the West Nile virus, the sometimes-fatal infection spread to humans through mosquito bites, have been confirmed in Philadelphia by the Philadelphia Department of Public Health. Here's ...