Researchers have identified the molecular mechanism behind vaccine-induced immune thrombotic thrombocytopenia, or VITT, a ...

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

When reports of rare but severe blood clots emerged after Johnson & Johnson’s COVID vaccine, they threatened to overshadow an otherwise successful immunization campaign and left scientists searching ...

Discovery caps 5-year journey to get to the bottom of one of the most puzzling chapters of the COVID-19 pandemic ...

Rare but deadly blood clots tied to J&J and AstraZeneca's vaccines were caused by an autoimmune reaction that some people are predisposed to, researchers found.

A global research collaboration of scientists from McMaster University (Canada), Flinders University (Australia) and Universitätsmedizin Greifswald (Germany) uncovered why a small number of people ...

A new study published in Science Translational Medicine has demonstrated a new mechanism by which mRNA COVID vaccines can cause heart inflammation, or myocarditis, in young men. While rare, ...

Add Yahoo as a preferred source to see more of our stories on Google. With a little help, your immune cells can be potent tumor killers. Steve Gschmeissner/Science Photo Library via Getty Images The ...

A groundbreaking study reveals that cancer patients who received a COVID-19 mRNA vaccine within 100 days of starting immunotherapy lived dramatically longer than those who didn’t. Researchers from the ...

By Hugo Francisco de Souza A novel nasal booster approach may help close the gap between systemic vaccination and infection-blocking mucosal immunity, offering fresh insight into next-generation COVID ...