Bits of viral genes incorporated into human DNA have been linked to cancer, ALS and schizophrenia. But many of these genes may not be harmful, and could even protect against infectious disease.

Researchers have discovered a virus that could enter human cells in a similar way to COVID-19. But they caution it's much ...

A newly discovered bat coronavirus uses the same cell-surface protein to gain entry into human cells as the SARS-CoV-2 virus ...

Perhaps you’d also like to believe that humans are more complex than a worm that is used precisely for its simplicity. For ...

CNN By Christopher Lamb, Antonia Mortensen and Sharon Braithwaite, CNN (CNN) — Pope Francis, who has been hospitalized since ...

Pope Francis, who is spending his fifth day in hospital, will not take part in this weekend's Holy Year events, the Vatican ...

Human Immunodeficiency Virus (HIV) persists as a leading global health issue ... providing insights into the complex mechanisms of HIV-1 replication. Dynamic changes in global and long-range ...

A strain of the H5N1 bird flu virus that has typically spread in poultry and wild birds recently jumped to dairy cattle in Nevada, the Department of Agriculture reported Wednesday, noting the ...

(CNN) — Six dairy herds in Nevada have tested positive for a newer variant of the H5N1 bird flu virus that’s been associated with severe infections in humans, according to the Nevada ...

It’s not the only illness spreading, either: Wastewater testing also shows high levels of the virus that causes Covid-19 across the country — well above levels seen at the start of winter.

A fatal virus has reportedly been discovered in shrews in Alabama, sparking concerns about potential contagion to humans. The Camp Hill virus — thought to be the first "henipavirus" in North ...