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

Researchers have identified the molecular mechanism behind vaccine-induced immune thrombotic thrombocytopenia, or VITT, a rare clotting disorder that emerged in a small number of people who received ...

Two large studies have put a spotlight on potential health risks of the COVID vaccine — but some experts urge caution when interpreting the findings. Recent research has linked the vaccine to a higher ...

The systematic review and meta-analysis were published in The New England Journal of Medicine in October 2025.

Getting a COVID booster could save your life, even if you’ve had multiple prior infections and vaccinations. A study, published on Wednesday in the New England Journal of Medicine, showed that last ...

Changes in the vaccine advisory process in the United States have disrupted immunization guidance, which reinforces the need for independent evidence review to inform decisions regarding immunization ...

Studies offer insights into the health risks and burdens faced by people who have had COVID infections. Meanwhile, the Trump administration has narrowed COVID vaccine recommendations and cut research.

The court concluded that a retraction likely wouldn't breach any publication contract, and that under the circumstances a temporary restraining order would be especially unjustified given the ...