Motorcyclists join an awareness campaign organized by the World Health Organization (WHO) to combat Ebola in Bunia, Congo, Wednesday, June 10, 2026. (AP Photo/Moses Sawasawa)

Motorcyclists join an awareness campaign organized by the World Health Organization (WHO) to combat Ebola in Bunia, Congo, Wednesday, June 10, 2026. (AP Photo/Moses Sawasawa)

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

A girl plays as Pope Leo XIV arrives for a meeting with migrants at the Las Raíces reception center in San Cristóbal de La Laguna, Tenerife, Spain, Friday, June 12, 2026. (AP Photo/Arturo Rodriguez)

Pope Leo XIV holds a young assistant as he arrives for a meeting with migrants at the Las Raíces reception center in San Cristóbal de La Laguna, Tenerife, Spain, Friday, June 12, 2026. (AP Photo/Arturo Rodriguez)

Pope Leo XIV hugs a child during a meeting with migrants at the 'Las Raices' center, in San Cristobal de la Laguna, Tenerife, Spain, Friday, June 12, 2026. (AP Photo/Alessandra Tarantino)

Pope Leo XIV attends a meeting with migrants at the 'Las Raices' center, in San Cristobal de la Laguna, Tenerife, Spain, Friday, June 12, 2026. (AP Photo/Alessandra Tarantino)

Pope Leo XIV meets a migrant at the 'Las Raices' center, in San Cristobal de la Laguna, Tenerife, Spain, Friday, June 12, 2026. (AP Photo/Alessandra Tarantino)