The Center for Disease Control urges international travelers to ensure they are fully vaccinated following an uptick in recent measles cases.

Pediatrician Dr. Joel Warsh joins "NewsNation Now" to discuss new CDC guidelines on COVID-19 shots, which contradict Secretary of Health and Human Services Robert F. Kennedy Jr.'s claims and his ...

The CDC released a new travel warning for measles while flying on a plane as cases top 1,000 in the U.S.