• Updated

Lauren Ellenburg, a nurse, prepares a combination measles, mumps and rubella vaccine for a 12-month-old at Tiger Pediatrics in Easley, S.C., on March 17, 2026. (AP Photo/Mary Conlon)

  • Updated

FILE - Orthodox priest Father Simeon, center left, with children and their parents, releases birds celebrating the Annunciation preceding the celebration of Orthodox Easter, in front of the Lomonosov Moscow State University and the St. Tatiana Church near the Kremlin, in Moscow, on Tuesday, April 7, 2026. (AP Photo/Alexander Zemlianichenko, File)

Children and their parents, release birds celebrating the Annunciation preceding the celebration of Orthodox Easter, in front of the Lomonosov Moscow State University and the St. Tatiana Church near the Kremlin, in Moscow, on Tuesday, April 7, 2026. (AP Photo/Alexander Zemlianichenko)

A youth at a shopping mall uses her smartphone near signs in Mandarin promoting a lifestyle against negative things in Beijing, Monday, April 6, 2026. (AP Photo/Andy Wong)

  • Updated

A mother administers a nebulizer treatment for her child suffering from measles at the Infectious Diseases Hospital in Dhaka, Bangladesh, Monday, April 6, 2026, amid a countrywide outbreak. (AP Photo/Mahmud Hossain Opu)

  • Updated

A mother administers a nebulizer treatment for her child suffering from measles at the Infectious Diseases Hospital in Dhaka, Bangladesh, Monday, April 6, 2026, amid a countrywide outbreak. (AP Photo/Mahmud Hossain Opu)

Parents take care of their child receiving treatment for measles at the Infectious Diseases Hospital in Dhaka, Bangladesh, Monday, April 6, 2026, amid a countrywide outbreak.(AP Photo/Mahmud Hossain Opu)