After a year of RFK, Jr., heading the Department of Health and Human Services, the “Make America Healthy Again” movement has ...

Adults should also stay up-to-date with vaccines. Here’s where to go for trusted guidance. You’re reading The Checkup With Dr ...

Learn about the safety and effectiveness of COVID-19 vaccines for kids, the possible side effects, and the benefits of vaccination.

Rare but dangerous blood clotting associated with that vaccine as well as AstraZeneca’s had a genetic cause, according to a new paper.

America’s drug safety agency declined to review a next-gen flu vaccine that uses the same tech as the coronavirus shots ...

Why does the same virus barely faze one person while sending another to the hospital? New research shows the answer lies in a molecular record etched into our immune cells by both our genes and our ...

In a winter marked by flu outbreaks, the persistence of Covid-19, and surges of measles cases across the United States, an ...

Because measles is so contagious, experts say that vaccination rates need to be above about 95 percent to stem the spread of ...

In a comparison of COVID-19 vaccines, the mRNA vaccine sustained higher anti-S IgG, while the Ad-vector had superior ...

This article appears in the March 2026 print edition with the headline “How America Got So Sick.” ...

Scientists created DNA-based vaccine scaffolds. In mice, the approach generated more HIV-specific B cells than traditional ...

Stanford scientists have uncovered how mRNA COVID-19 vaccines can very rarely trigger heart inflammation in young men — and how that risk might be reduced. They found that the vaccines can spark a two ...