This story is part of our series on viroids and virusoids, small infectious RNAs. The story is also the second installment in a series on hepatitis D virus, a virusoid-like pathogen that causes ...

This story is part of a larger series on viroids and virusoids, small infectious RNAs. It is also the fifth installment in a series on hepatitis D virus, a virusoid-like pathogen that causes serious ...

Researchers found that Zika virus induces cells to create connections, called tunneling nanotubes, that may enable the virus to replicate and spread from mother to fetus. UNIVERSITY PARK, Pa. — In ...

University of Pittsburgh researchers have shown for the first time how Merkel cell polyomavirus (MCV), which causes an aggressive skin cancer called Merkel cell carcinoma, initiates DNA replication in ...

COVID-19, flu, mpox, noroviral diarrhea: How do the viruses that cause these diseases actually infect you? Viruses cannot replicate on their own, so they must infect cells in your body to make more ...