Early one morning, medical student and freelance reporter Michal Ruprecht arrived at Entebbe International Airport in Uganda to catch a flight home. It was 2 a.m., and when he told the airline agent he was headed to Michigan, the agent paused and held up a memo from U.S. Customs and Border Protection: Ruprecht would have to arrive at Washington Dulles International Airport (IAD).
Ruprecht was among the first travelers affected by a U.S. policy announced hours earlier requiring Americans who have been in Uganda, South Sudan or the Democratic Republic of Congo (DRC) during the previous 21 days to enter the United States through specific airports. The measure aims to concentrate screening and follow-up for people who might have been exposed during an Ebola outbreak that the World Health Organization declared a public health emergency of international concern on May 17. The WHO has reported roughly 800 suspected cases and more than 180 suspected deaths in the affected region.
Within days, authorities said two more U.S. hubs—Hartsfield-Jackson Atlanta International Airport and Houston’s George Bush Intercontinental Airport—would also begin screening travelers from the affected countries.
After rebooking, Ruprecht flew to Dulles, a trip that took about 20 hours. There, CDC personnel directed him into a temporary screening area: curtained-off sections resembling makeshift exam rooms. Staff checked his temperature with a handheld thermometer; an initial reading was a bit elevated, but subsequent checks were normal. Officials then asked about symptoms, whether he had treated patients or attended funerals while in Uganda, and collected his contact information. The process took roughly five to ten minutes. Ruprecht later received a CDC text listing Ebola symptoms—fever, rash, nausea, vomiting—and instructions to call his local health department and isolate if he developed symptoms.
Under the new procedures, CDC teams at the designated airports conduct initial risk assessments and then notify the state health departments where travelers will end up. State epidemiologists say follow-up varies by assessed exposure risk: some people require daily monitoring, others less frequent check-ins. Dr. Laurie Forlano, Virginia’s state epidemiologist, said the work is familiar but labor-intensive, and that early stages of the response can be chaotic.
Public health leaders warn the system faces challenges. Dr. Jeanne Marrazzo, former NIH official and current Infectious Diseases Society of America CEO, noted that local, regional and state public health staffing and funding have been significantly reduced in recent years, leaving health departments less robust than they once were.
The federal response includes travel restrictions in addition to routing. The CDC issued an updated Title 42 order clarifying that only U.S. citizens and nationals are guaranteed entry through the designated airports; lawful permanent residents will be considered, and most other travelers coming from the affected countries will be barred. Policy makers point to differences with the 2014–2016 West Africa Ebola epidemic, when the U.S. allowed travelers from affected areas to enter under conditions that required daily monitoring for 21 days rather than restricting entry to certain airports.
Public health experts caution that travel bans or routing alone are limited in effectiveness. Dr. Marty Cetron, former head of the CDC’s Division of Global Migration and Quarantine, said restrictions rarely work by themselves because determined travelers may find ways around them. He and others argue that screening at ports of entry must be accompanied by clear information, steps to ensure compliance, and—most importantly—robust resources to contain the outbreak at its source. Pathogens do not stop at borders, they note, and controlling transmission in affected countries is critical to ending the threat.
The CDC has already deployed staff to East-Central Africa; agency officials say several dozen personnel are working in the affected countries to support response efforts. Public health veterans recall that during the 2014–2016 epidemic the U.S. deployed thousands of military and civilian personnel to lead and support containment efforts.
For travelers like Ruprecht, the new measures meant an unexpected detour, extra screening and follow-up messages from health officials. For public health authorities, the routing policy is one piece of a larger response that includes on-the-ground support in affected countries, state-level monitoring, and efforts to manage limited public health capacity at home.
