More than 35,000 cases of the mosquito-borne disease have been reported on the French Indian Ocean island since August 2024.

More than 35,000 cases of the mosquito-borne disease have been reported on the French Indian Ocean island since August 2024.

While measles immunity lasts a lifetime, some people who received only one shot or an older version of the vaccine may benefit from a booster.

Meanwhile, whooping cough cases are surging across the U.S., with CDC data showing 8,077 cases in 2025, compared with 3,847 cases in the same period last year.