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 ...

Ian Haydon helped test Moderna's coronavirus vaccine last year. Now, he's helping test the tweaked version of that vaccine designed to fight a new, more contagious variant. "A year ago I tried the ...

A “significant change” in the Covid-19 vaccine eligibility has left members of the public unsure about who can get a jab this autumn. The criteria for eligibility has shifted this year to targeting ...

In previous years, anyone 6 months and older could get the shots, and they were covered by insurance. Now, some individuals can still get the shots with ease, while others may face roadblocks. Further ...

These days, getting a COVID shot is a personal decision you make with a health care provider. The CDC recommends that everyone 6 months and older talk with a health professional about whether and when ...

DEAR DR. ROACH: My daughter was recently visiting and tested positive for COVID. Since my last COVID vaccine was eight months ago, I searched for how much protection I still had and understood the ...

A federal work group says Covid vaccine injuries deserve urgent attention, even as Health Secretary Robert F. Kennedy Jr.