International air travellers heading to the United States must now declare that they have not been in the Democratic Republic of Congo (DRC) in the previous 21 days, a step linked to an Ebola outbreak in rural areas of the country.

Multiple outlets report that the rule is tied to requirements implemented by the U.S. Centers for Disease Control and Prevention. Vanguard and Inquirer.net describe it as a mandatory passenger attestation for anyone boarding flights to the U.S., effective from early November 2026. Simple Flying similarly frames the change as applying to everyone on U.S.-bound flights, including crew.

Korea Times adds operational details from an airline perspective, saying Korean Air will collect Ebola-related declarations from all U.S.-bound passengers and that those who visited Congo within 21 days will not be allowed to board. It also notes the measure covers various categories including crew and transit passengers, and includes an example involving passengers who only changed planes in Congo without leaving the airport.