Viruses

Malaria grabs headlines, but U.S. residents are more likely to encounter West Nile virus and other mosquito-borne illnesses

Genetic susceptibilities, the environment and the body’s response to inflammation all influence our odds of falling ill

Unregulated wild animal markets increase the risk of more epidemics

Recently released data from samples of the COVID-causing virus SARS-CoV-2 at the market where many early cases of the disease occurred suggest animals were present but stop short of proving that they were infected and transmitted the virus to humans

Uncertain funding means wastewater surveillance programs could close in the future

Being infected with HIV is no longer a terminal diagnosis, but researchers are looking to fill the gaps that remain to ensure treatment reaches all who need it

Decades of failed attempts have given way to several successful vaccines and treatments for the respiratory disease RSV

Norovirus, the so-called winter vomiting disease, is making its seasonal rounds across the U.S. Here’s what you should know

Although most experts say bird flu is not an immediate threat to humans, efforts are underway to produce vaccines for H5N1 or another potential pandemic virus

Health care workers in Uganda will be among the first people to receive candidate Ebola vaccines in a clinical trial that could expand the available tools for the control of Sudan ebolavirus outbreaks

A genome analysis finds SARS-CoV-2 and bat coronaviruses shared an ancestor just a few years ago, but extensive recombination has muddied the picture

Your questions answered about what RSV is, how it spreads, what vaccines are on the way and who is most at risk