WASHINGTON - The U.S. Centers for Disease Control and Prevention said on Monday that one American tested positive for Ebola as part of its work in the Democratic Republic of Congo, where there is an outbreak of a rare strain of the virus, but advised that the immediate risk in the U.S. was low.

The CDC did not name the individual, but the Serge Christian mission organization said one of its medical missionaries, Dr. Peter Stafford, was exposed while treating patients at Nyankunde Hospital in the DRC.

"The person developed symptoms over the weekend and tested positive late Sunday," Dr. Satish Pillai, the incident manager for the agency's Ebola response, told reporters on a media call.

The CDC is working with the State Department to move the American to Germany for treatment and care, said Pillai, adding that six other people who were exposed were also being moved to Germany.

Medical personnel were rushing on Monday to the front lines of a new Ebola outbreak in eastern Democratic Republic of Congo, where late detection of the virus and quick spread have alarmed health experts. There have been 105 suspected deaths and 393 suspected cases, the Congo Health Cluster said on Monday.

Serge said Stafford was one of three missionaries, including his wife, who were caring for patients, but that the other two remain asymptomatic.

The CDC is deploying technical experts from its headquarters in Atlanta to the outbreak area, Pillai said.

The U.S. is working to develop a monoclonal antibody therapy as a potential treatment for this strain of Ebola, he said, with the work taking place in the Biomedical Advanced Research and Development Authority, known as BARDA.

The U.S. has the capacity to test for the virus through its public health laboratory network, said Pillai, and the risk to the United States remains low.

CDC TRAVEL RESTRICTIONS

The CDC said earlier on Monday it was suspending entry of some travelers for 30 days to reduce the risk of Ebola spread.

The order applies to travelers who have departed from, or were present in, the DRC, Uganda, and South Sudan during the past 21 days, regardless of their country of origin, the agency said in a statement.

The measures will not apply to U.S. citizens, U.S. nationals, lawful permanent residents, members of the U.S. military, government personnel overseas, their spouses, and children, according to the order.

Other exemptions include individuals who customs officers determine should be excepted from the order, and non-citizens who it would apply to but are approved to enter by the Department of Homeland Security.

"The risk of Bundibugyo (Ebola) virus disease introduction into the United States is heightened by the virus' incubation period, which can extend up to 21 days, allowing infected individuals to travel internationally while asymptomatic and therefore unlikely to be detected through routine symptom-based screening measures," the CDC said.

It issued the order under Title 42, a section of U.S. public health law that grants federal health authorities the power to prohibit migrants from entering the country to prevent the spread of contagious diseases.

The agency said it would also screen and monitor travelers arriving from areas affected by Ebola outbreaks in the region and ramp up contact tracing, laboratory testing capacity and hospital readiness nationwide.

Pillai said the U.S. government was still working on its final plans for DRC World Cup athletes and international travel hubs. Houston is serving as the host site for the DRC team during the World Cup, which begins next month, and several U.S. cities will be hosting other teams.

The CDC will also coordinate with airlines and port-of-entry officials to identify and manage travelers who may have been exposed to the virus.

(Reporting by Ahmed Aboulenein in Washington and Julie Steenhuysen in Chicago; Additonal reporting by Susan Heavey and Jasper Ward; Editing by Katharine Jackson, Michelle Nichols and Bill Berkrot)

Copyright Reuters or USA Today Network via Reuters Connect.

This story was originally published May 18, 2026 at 3:28 PM.

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