The longer and farther the virus spreads, the more likely it could become endemic in new areas, says UCLA epidemiologist Anne Rimoin.

Moderna and Pfizer-BioNTech shots could be given to the youngest kids as early as June 21.

People who were vaccinated at least six months prior to infection had the lowest risk of lasting symptoms in a UK study.

Genetic testing of people who died in Kyrgyzstan eight years before plague reached Europe reveals an ancient strain of the bacterium Yersinia pestis.

Experiments in animals and observations in humans suggest that the amount of proline circulating in one’s plasma has a strong association with depression severity.

The ACTIV-6 trial reports that people who took the drug for three days may have spent slightly less time feeling unwell with SARS-CoV-2, but fails to find differences in disease progression between the treatment and placebo groups.

Human mucus contains glycans that could one day treat harmful Candida albicans infections.

Microbes in the gut influence the death of support cells in the brain by producing isoamylamine, a study suggests.

The discovery that a group of cell-infecting bacteria lived roughly 2 billion years ago stirs a longstanding controversy around which came first: phagocytosis or mitochondria.

A new program will provide 150 early-career scientists committed to advancing diversity, inclusion, and equity up to $8.6 million each.

Experts are scrambling to understand clusters of the normally rare disease that have been reported in Europe and North America in the last month.

The presence and spread of new, more-infectious and immune-evading variants show that the coronavirus is not done mutating.

A sugar that’s less abundant in the blood of people with diabetes binds to SARS-CoV-2’s spike protein and disrupts the virus’s ability to fuse with cells.