The federal government announced new travel measures on May 18, 2026 aimed at reducing the chance that Ebola virus disease will arrive in the United States. Under an order issued by the Centers for Disease Control and Prevention (CDC) in coordination with the Department of Homeland Security (DHS) and other agencies, authorities implemented heightened screening, targeted entry limits, and stepped-up public health actions. The directive relies on statutory authority in Sections 362 and 365 of the Public Health Service (PHS) Act, codified at 42 U.S.C. §§ 265, 268, and is intended to be temporary while officials continue to assess risk.
Effectively immediate, the order lasts for 30 days and focuses on travelers recently present in three countries where outbreaks are active. The measures include traveler monitoring at ports of entry, closer coordination with airlines and international partners, and operational changes at airports and seaports. Although the CDC currently judges the overall risk to the general U.S. public as low, the agency has emphasized vigilance and flexibility, saying it will adapt the response as new information becomes available.
What the order actually does
The core action is a temporary restriction on entry for people who were in the Democratic Republic of the Congo, Uganda, or South Sudan within the preceding 21 days. That 21-day timeframe reflects the maximum known incubation period for the relevant Ebola strain, meaning someone could travel while asymptomatic and later develop illness. In practice, the order directs border and public health officials to deny entry to non-U.S. passport holders who meet that travel history criterion, while implementing enhanced health screening procedures for all travelers arriving from affected regions. The order also authorizes stepped-up contact tracing and testing capacity where needed.
Who is exempt and how exceptions work
The order includes explicit exemptions for certain categories of people. U.S. citizens, U.S. nationals, lawful permanent residents, members of the U.S. military, and government personnel stationed abroad, along with their spouses and children, are not barred by the restriction. In addition, customs and border officers retain discretion to allow entry in individual cases, and the Department of Homeland Security may approve exceptions on a case-by-case basis. These carve-outs mirror the structure of prior public health orders: broad authority paired with targeted exemptions and discretionary decisions at ports of entry.
Why officials chose this approach
The decision rests on a combination of epidemiology and precaution. Health authorities flagged outbreaks involving the Bundibugyo strain of Ebola in parts of East and Central Africa; the World Health Organization has characterized the situation as a public health emergency. Because the strain can take up to 21 days to produce symptoms, travelers might cross borders before becoming ill. By tightening entry rules and screening, federal agencies aim to reduce the chance of undetected importation while domestic laboratories, hospitals, and public health teams prepare for possible cases.
Public health and operational steps
Alongside the entry restriction, agencies are expanding operational readiness. Actions described by federal officials include enhanced port health protection, increased lab testing capacity, improved hospital readiness across the country, and deployment of CDC personnel to assist containment abroad. Airline coordination and traveler monitoring systems have been bolstered to identify passengers with relevant travel histories, and contact tracing protocols have been reinforced so that exposure chains can be followed quickly if a case is detected.
Advice for travelers and residents
If you have traveled through the affected countries within the last 21 days, public health guidance is clear: watch for symptoms and seek care quickly. Typical signs of Ebola include fever, weakness, vomiting, diarrhea, and sometimes unexplained bleeding. Travelers should follow CDC travel health notices and contact medical services immediately if symptoms develop within the 21-day window after travel. The federal order emphasizes monitoring and rapid reporting rather than panic, and officials continue to state that the immediate risk to most Americans remains low.
