Epidemiology

Mathematician Abba Gumel uses calculations and models to prepare for future disease outbreaks

A mutant human influenza found in two dogs shows the importance of viral surveillance in companion animals

Stress on health care facilities might have accelerated outbreaks of the hard-to-treat yeast Candida auris

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

Genetic sequences show evidence of raccoon dogs and other animals at the Wuhan market sites where SARS-CoV-2 was found in early 2020, adding to evidence of a natural spillover event

The World Health Organization declared the COVID outbreak a pandemic three years ago. Here’s what’s changed since then

House Republicans have kicked off an investigation into how the pandemic began with witnesses who largely favor a lab origin

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

Many repeat infections are mild, but some studies suggest people who have been infected with COVID more than once are at a greater risk of severe disease or long COVID

Concerns about Paxlovid rebound are preventing some doctors from prescribing the lifesaving drug and some high-risk patients from taking it

A new variant of the virus that causes COVID has mutations that make it more transmissible, but vaccines are still likely to protect against severe disease

Boosting vaccination rates, continuing widespread mask use and reimposing some restrictions on movement could reduce the number of deaths in China’s COVID wave