Bacille Calmette-Guérin (BCG) revaccination is not efficacious for preventing sustained Mycobacterium tuberculosis infection, defined by sustained QuantiFERON-TB (QFT) test conversion, according to a ...

Leaders at the FDA, HHS and elsewhere are putting guardrails around COVID-19 boosters, which could mean delayed shots or ...

An L.A. Times reader asks, 'If you don't allow placebo trials, how exactly do you certify a vaccine as "safe and effective"?' ...

Both the FDA and EMA have suspended Ixchiq’s use in older adults after post-marketing serious adverse events that include two ...