Health Care

COVID accelerated the development of cutting-edge PCR tests—and made the need for them urgent

The COVID research infrastructure will help fight all sorts of pathogens

Hamsters eating Cocoa Krispies reveal inflammation pathways from the olfactory system to the brain

Despite growing popularity, the fundraising strategy will never be social safety net

The Omicron variant appears to be creating more cases in small children

A type of clinical trial that tests many therapies at once is being used for COVID and Alzheimer’s

It depends, but vaccinated people should generally wait five days after exposure before taking an antigen test. Here’s why

COVID shutdowns limited the spread of influenza in 2019–2020. Several factors could mean this season will be more severe

Start-ups bet that carefully controlled cell reprogramming may lead to age reversal, but hurdles remain

But shortages mean that new antivirals and other drugs may be hard to come by

Short exposure should not be too harmful, but residents should take precautions where they can

Experts predict that such nonhuman-to-human “xenotransplants” may become a viable option within the next decade