IN SHORT: Viral posts circulating on Facebook in Kenya and Tanzania claim to show HIV magnified under a microscope, suggesting the virus's anatomy makes it drug-resistant. But the image actually shows ...

Influenza viruses are among the most likely triggers of future pandemics. A research team has developed a method that can be used to study the interaction of viruses with host cells in unprecedented ...

ST. LOUIS -- Even as scientists were confirming that the West Nile virus had reached St. Louis, researchers here already have been trying to pinpoint why the mosquito-transmitted form of encephalitis ...

The US Centers for Disease Control and Prevention said on Thursday its analysis of samples from the first severe case of bird flu in the country last week showed mutations not seen in samples from an ...