COVID-19 vaccines lower the risk of getting sick, seriously ill or dying from the disease. But how do the different types of COVID-19 vaccines work? Each COVID-19 vaccine causes the immune system to ...

A study has found that repeat vaccination with updated versions of the COVID-19 vaccine promotes the development of antibodies that neutralize a wide range of variants of the virus that causes ...

COVID-19 vaccines have been key to controlling the pandemic, but researchers in Germany report on one man who took the vaccination message to the extreme. The subject of the research published in ...

Although the 'emergency' phase of the COVID-19 pandemic may be over, it is still ongoing, and thousands of people still die from the disease every week. The virus also continues to mutate, and new ...

Stratus and Nimbus have similar symptoms to previous variants including a fever, cough and runny nose, but the Nimbus variant ...

WASHINGTON — U.S. regulators approved updated COVID-19 vaccines on Thursday, shots designed to more closely target recent virus strains — and hopefully whatever variants cause trouble this winter too.