A rare but serious clotting disorder linked to certain COVID-19 vaccines and natural adenovirus infections has puzzled scientists for years.

When people get the shots, the body’s immune system can accidentally confuse a normal protein from adenovirus - which is used ...

Polling found that nearly 30% of older adults chose not to receive flu or COVID-19 vaccines due to a perceived lack of need.

The varicella-zoster virus causes both chickenpox and shingles infections. Initially, the virus causes a chickenpox infection. If it reactivates later, shingles can develop. The chickenpox vaccine ...

Moderna (MRNA) stock fell 0.3% Friday despite beating Q4 revenue estimates at $678M and posting narrower loss of $2.11/share after FDA rejected flu vaccine review.

For example, did my son really need the Hepatitis B vaccine, the requirement for which was only introduced in the 1990s? On ...

About a dozen times each day, medical staff at Parkside Pediatrics in Spartanburg, South Carolina, head to the ...

NEW YORK (AP) — Since Robert F. Kennedy Jr. was sworn in to lead the U.S. Department of Health and Human Services one year ...

Researchers identify genetic mutation in small group of people who developed the serious disorder after receiving the AstraZeneca or Johnson & Johnson vaccine.

Lina Tucker Reinders of the Iowa Public Health Association answers questions about how removing vaccine rules could affect ...

HealthDay News — More than four in 10 people older than 50 years (42 percent) have not gotten either a flu or COVID-19 ...