Kennedy Jr., an ardent vaccine critic who would have been Weldon’s boss as health secretary. Perhaps Weldon’s biggest problem ...

A more affordable, lower-risk polio vaccine is on the horizon, research led by the University of Leeds has found.

University of Leeds researchers have taken a major step towards producing a more affordable and lower-risk polio vaccine ...

WASHINGTON — The Trump administration is canceling studies about ways to improve vaccine trust and access, a move that comes in the midst of a large measles outbreak fueled by unvaccinated children.

The CDC recommends four doses of the inactivated polio vaccine (IPV), which is 99% effective, before the age of 6. “If you drop immunization rates low enough in various areas, polio could come ...