Epidemiology

Making decisions based on complex information is frustrating and stressful, but a change in mindset can help

Some studies suggest that the risk of cardiovascular problems, such as a heart attack or stroke, remains high even many months after a SARS-CoV-2 infection clears up

Earlier action by the World Health Organization and Western countries could have helped control monkeypox in Africa

An unvaccinated person became infected with the virus, which can be traced to a live, weakened virus commonly used in the oral polio vaccine abroad

A possible biomarker for long COVID suggests some people with the condition never fully cleared the virus

The virus circulating in the current outbreak has mutated 50 times in the past four years

When SARS-CoV-2 lingers in the body, it accumulates many of the same mutations seen in the most dangerous global variants. What can scientists do with this knowledge? 

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

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