RFK Jr. Sought to Stop Covid Vaccinations 6 Months After Rollout
Robert F. Kennedy Jr. petitioned the F.D.A. to revoke authorization of the shots at a time when they were in high demand and considered life-saving.
Vaccination and Immunization
How Lagging Vaccination Could Lead to a Polio Resurgence
In its original form, the virus survives in just two countries. But a type linked to an oral vaccine used in other nations has already turned up in the West.