New research with Indigenous Ecuadorian Shuar communities indicates that disgust may protect us from pathogens.

A new diagnostic tool that plugs into a phone can test for COVID-19 in 55 minutes or less, researchers report. It can be done almost anywhere, too.

In several countries, including the US, the number of people who say they'll get a COVID-19 vaccine is falling short of the number needed for herd immunity.

Even just one day of air pollution can change kids' genes in a way that could put them at higher risk for heart disease and more, researchers report.

Thousands of workers at meat- and poultry-processing plants have contracted COVID-19, and hundreds have died. A legal scholar recommends ways to make their jobs safer.

Scientists issued an urgent call for better federal regulation of these endocrine-disrupting chemicals. Here's why.

Can the current crop of vaccines get us to herd immunity even if variants become widespread? A Harvard immunologist says yes.

Liquid biopsies can gauge the effectiveness of therapy for colorectal cancer that has begun to spread beyond the original tumor, researchers report.

Young adults report the least amount of concern about COVID-19. That suggests communicating risks to them would offer the biggest boost in virus reduction.