Wastewater surveillance could help reveal trends in disease spread, including for monkeypox, polio, and COVID. But more work is needed.

Public health officials monitor sewage in local communities to track COVID, polio, flu and more. But no one asks the people being monitored for their permission – raising some questions and concerns.

An expert answers questions about flu shots and COVID boosters, including whether you can get them at the same time.

Women with high stress related to COVID-19 reported changes in menstrual cycle length, period duration, menstrual flow, or increased spotting.

A recent preprint suggesting SARS-CoV-2 came from a lab has reignited the fierce debate over the origins of the virus.

If you have COVID-19 symptoms but a negative rapid test, take this expert advice to keep people around you safe.

Cell membranes are a basic structure common to most living organisms – but they can be hijacked.

A team led by investigators at Massachusetts General Hospital has determined that Omicron BA.2 is weaker than both Delta and the original Omicron variant.

The new design "could be used not just for SARS-CoV-2 and other related viruses, but also for other clinically important pathogenic viruses."

Outreach by local groups can expand access to at-home COVID-19 testing, especially in vulnerable communities, a new study shows.