U.S. Transportation Secretary Duffy said the incident’s root cause was not the result of foreign actors.

U.S. media on the 13th reported the Pan American Health Organization has decided not to recognize the U.S. as measles-free, citing people familiar with the matter in the Wall Street Journal and CNN. PAHO is the World Health Organization’s regional body. WHO requires at least 12 consecutive months without local transmission of the same measles strain to confer measles-free status. The U.S. declared measles eliminated in 2000; since 2025 U.S. measles cases have exceeded the cumulative total recorded from 2000–2024.

UK Civil Aviation Authority said that after the U.S. Federal Aviation Administration (FAA) lifted the nationwide ground stop, flights to and from the United States have resumed, but airlines' rebooking of affected passengers is likely to cause continued delays, cancellations and passenger rebookings in the near term.