Infectious mononucleosis is most often caused by the Epstein-Barr virus (EBV), a member of the herpes virus family. Less ...

Discover what happens when Nipah virus infects the body, its early symptoms, effects on lungs and brain, and the latest cases ...

Nepal, Feb. 2 -- Nipah virus, a deadly zoonotic virus, was first reported in Malaysia in 1998. The country documented a total of 265 human cases, including 105 deaths (nearly 40 percent), largely ...

How long are you contagious with the flu? Experts say you can spread the virus for five to seven days after symptoms start, ...

Flu activity has ticked back up slightly in the US, thanks to a very small increase in infections caused by influenza B — ...

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Sexually transmitted diseases (STDs), also called sexually transmitted infections (STIs), are far more common than many ...

School officials say additional schedule changes are possible if illness continues to spread; the Colton School District said ...

It’s a bad viral season in the state, and the number of children immunized against COVID has declined sharply.

Two confirmed cases of the rare virus prompted the WHO and other health officials to activate their outbreak responses. WASHINGTON — Several Asian countries have introduced or reinforced precautionary ...

Is this a sign of another pandemic? After WHO confirmed 2 cases of the highly lethal Nipah virus in India, airports across ...