People who reported allergic reactions to their COVID vaccine may have actually experienced symptoms that mimic allergic reactions, researchers say.

A single shot of a new drug known as ‘Peg-lambda’ significantly reduced the risk of hospitalization and death in newly diagnosed COVID patients, according to researchers.

Two new studies find bivalent COVID-19 boosters aren’t more effective at boosting antibody levels compared to the original vaccine.

Researchers use smartwatches to track the heart health of thousands of COVID booster recipients and find no lasting, harmful, or negative effects.

High levels of physical activity enhance the effectiveness of COVID shots in fully, researchers find.

The American Academy of Pediatrics warns families not to underestimate the flu, especially with COVID-19 still circulating.

Researchers say biological rather than behavioral differences may explain why men face a greater risk of most types of cancer.

Menstruating and post-menopausal women experienced heavier, unexpected bleeding after COVID vaccination, researchers say.

Researchers say the loss of Y chromosomes in older men may accelerate age-related diseases and cause heart scarring.

Researchers compare maternal and fetal antibody responses to different COVID-19 vaccines.

More than 75% of kids 13-17 years old now have at least one dose of the HPV vaccine, researchers say.