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

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

House Republicans are proposing work requirements for Medicaid and are planning to limit states’ use of the lucrative ...

Anybody who has oral, anal, or vaginal sex, or genital skin-to-skin contact with another person can get STDs — in fact, most sexually active people get one at some point in their life. STDs don’t ...