Viruses

Testing bottlenecks and vaccine rollout problems have let the monkeypox virus spread unchecked, echoing the mistakes of the U.S. COVID response

A technique that detects coronavirus strains circulating in a community could become an early-warning system

Widely used gowns, intended to protect people, can let too much liquid seep through, new studies suggest

An infectious disease expert answers questions about how the virus spreads, what its symptoms are and how to get testing and treatment

Scientists in Thailand have established that a tabby passed SARS-CoV-2 to a veterinary surgeon—although such cases of cat-to-human transmission are probably rare

The model, which uses machine learning to track the fitness of different viral strains, accurately predicted the rise of Omicron’s BA.2 subvariant and the Alpha variant

The detected strain can sometimes cause severe disease in people who are not vaccinated against polio

Researchers are racing to understand the latest monkeypox outbreaks—from their origins to whether they can be contained

It is unclear how some people recently diagnosed with the disease became infected with the monkeypox virus or how it is likely to spread

How to tell the different versions of SARS-CoV-2 apart, and how well vaccines protect against them

A modeling study is the first to project how global warming will increase animal encounters and virus swapping between species

Veterinarians and rabbit owners are racing to protect bunnies as a hemorrhagic disease spreads