In this photo released by UNICEF, workers unload doses of Ebola (Zaire) vaccines from a plane at Ndjili International Airport in Kinshasa, Congo, Friday, Aug. 21, 2026. (Ndomba Mbikayi/UNICEF via AP)

In this photo released by UNICEF, officials inspect doses of Ebola (Zaire) vaccines upon arrival at Ndjili International Airport in Kinshasa, Congo, Friday, Aug. 21, 2026. (Ndomba Mbikayi/UNICEF via AP)

Congo’s Health Minister Roger Kamba administers an Ebola vaccine to a health care worker in Kisangani, Congo, Thursday, Aug. 27, 2026. (AP Photo/Samy Kamanga)

FILE - Health and Human Services Secretary Robert F. Kennedy Jr., speaks during a meeting to sign an executive order about vaccines, Aug. 10, 2026, in the Oval Office of the White House in Washington. (AP Photo/Jacquelyn Martin, File)

FILE - Robert F. Kennedy, Jr., right, President Donald Trump's nominee to serve as Secretary of Health and Human Services, talks with Committee Chairman Sen. Bill Cassidy, R-La., following his confirmation hearing on Capitol Hill, Jan. 30, 2025, in Washington. (AP Photo/Rod Lamkey, Jr., File)

FILE - Health and Human Services Secretary Robert F. Kennedy Jr., listens during a meeting to sign an executive order about vaccines Aug. 10, 2026, in the Oval Office of the White House in Washington. (AP Photo/Jacquelyn Martin, File)

FILE - Prime Minister Tuilaepa Sailele Malielegaoi, foreground right, shakes hands with Robert F. Kennedy Jr. at the the 57th Independence Celebration in Mulinu'u, Samoa, June 1, 2019. At foreground left is Kennedy's wife, actress Cheryl Hines.(Misiona Simo/Samoa Observer via AP, File)

FILE - Robert F. Kennedy Jr., President Donald Trump's choice to be Secretary of Health and Human Services, appears before the Senate Finance Committee for his confirmation hearing, at the Capitol in Washington, Jan. 29, 2025. (AP Photo/Ben Curtis, file)