A health worker stands at an ebola treatment centre in Bunia, Congo, Monday, July 20, 2026. (AP Photo/Prosper Heri Ngorora)

A health worker at an ebola treatment centre in Bunia, Congo, Monday, July 20, 2026. (AP Photo/Prosper Heri Ngorora)

An ambulance drives past an ebola treatment centre in Bunia, Congo, Monday, July 20, 2026. (AP Photo/Prosper Heri Ngorora)

FILE - A Venezuelan flag waves in the wind atop the National Assembly palace in Caracas, Venezuela, Jan. 20, 2026. (AP Photo/Matias Delacroix, File)

FILE - Florence Makumene holds HIV medication that she received through funding from the U.S. President's Emergency Plan for AIDS Relief (PEPFAR), along with her hospital records book, at her home in Harare, Zimbabwe, Feb. 7, 2025. (AP Photo/Aaron Ufumeli, File)

In this image taken from video taken on July 15, 2026, one of the quadruplets born at Metro North Health hospital lies in an incubator in Brisbane, Australia. (Metro North Health via AP)

In this image taken from video taken on July 15, 2026, one of the quadruplets born at Metro North Health hospital lies in an incubator in Brisbane, Australia. (Metro North Health via AP)

The New York City Fire Department and law enforcement respond to an incendiary device outside the New York federal building in lower Manhattan, Monday, July 20, 2026, in New York. (AP Photo/Larry Neumeister)