US Expands Ebola Entry Ban to Green Card Holders

The United States has significantly expanded its entry restrictions in response to a rapidly escalating Ebola outbreak in Central and East Africa, extending a travel ban to include U.S. lawful permanent residents who have recently visited affected countries. The move comes as the World Health Organization (WHO) warns that the outbreak, caused by the rare Bundibugyo strain of Ebola, poses a serious threat with no approved vaccine or specific treatment available.

The Expanding Restrictions

On May 18, the CDC issued an Order under Title 42 authority suspending entry of foreign nationals who had been in the Democratic Republic of Congo (DRC), Uganda, or South Sudan within 21 days before arrival. Just four days later, on May 22, the CDC announced that the restriction had been expanded to cover U.S. lawful permanent residents — green card holders — who had been in those same countries within the previous 21 days.

“The rule does not permanently bar lawful permanent residents from returning to the United States,” the CDC stated. “Instead, it gives CDC discretionary authority to restrict entry when needed and allowed by law.” The ban is explicitly framed as a 30-day action, effective through approximately mid-June, designed to give health agencies time to assess the outbreak’s trajectory.

The Outbreak’s Scale

The WHO declared the outbreak a Public Health Emergency of International Concern (PHEIC) on May 17. As of May 21, approximately 600 suspected cases and 139 deaths had been reported in the DRC, concentrated in Ituri and North Kivu provinces, with two confirmed cases in neighboring Uganda. The outbreak is caused by the Bundibugyo ebolavirus (BDBV), a rare strain first identified in Uganda in 2007-2008. Unlike the Zaire ebolavirus — for which vaccines and treatments exist — there is no approved vaccine or specific therapeutic for this strain, which carries a fatality rate estimated between 25 and 50 percent.

An American physician working in the outbreak zone, identified as Dr. Peter Stafford, has tested positive for the Bundibugyo strain and was evacuated to Germany for treatment alongside six other exposed Americans.

Enhanced Screening Measures

The CDC began enhanced public health entry screening at Washington-Dulles International Airport on May 20, redirecting affected travelers there for temperature checks, health questionnaires, and contact information collection. Despite these measures, the CDC assesses the immediate risk to the general U.S. public as low, noting that no suspected, probable, or confirmed cases of Ebola have been reported in the United States.

A Notable Exception

In a pragmatic carve-out, the U.S. State Department confirmed that the DRC national football team would be allowed entry for the 2026 World Cup, which the U.S. is co-hosting with Canada and Mexico. The team, which has been training in Europe, will be subject to special screening protocols. The exemption does not apply to everyday fans from the DRC.

Criticism from Health Authorities

The U.S. approach has drawn sharp criticism from African health authorities and international organizations. Africa CDC, via The Guardian, argued that “generalised travel restrictions and border closures are not the solution to outbreaks,” warning that such measures “can create fear, damage economies, discourage transparency, complicate humanitarian and health operations, and divert movement toward informal and unmonitored routes — potentially increasing public health risks rather than reducing them.”

Africa CDC also highlighted what it called “a deeper structural injustice in global health innovation: the Bundibugyo Ebola virus was identified nearly two decades ago, yet no licensed vaccines or therapeutics specific to this strain exist today.” The organization suggested that if the disease had threatened wealthier regions, medical countermeasures would likely already be available.

Dr. Githinji Gitahi, Group CEO of Amref Health Africa, added: “Travel bans don’t stop viruses, they stop solidarity. The fastest way to protect everyone is to invest in outbreak control at the source, not isolate the affected. Africa needs partnership, not punishment.”

Uganda’s Information Minister, Chris Baryomunsi, called the U.S. response an overreaction, asserting that Uganda has the capacity to contain the outbreak based on its experience handling previous epidemics.

Implications and Outlook

The expansion of Title 42 authority to cover lawful permanent residents marks a significant legal precedent, extending public health emergency powers to restrict the movement of U.S. permanent residents — a move that could have implications for future outbreaks. The WHO continues to advise against general travel and trade restrictions, emphasizing that such measures are “usually implemented out of fear and have no basis in science.”

With the outbreak spreading into rebel-controlled areas of eastern DRC — including South Kivu, where the M23 group reported a case — and confirmed cases appearing in Uganda, the coming weeks will test whether the 30-day ban is extended, modified, or allowed to expire. The lack of a Bundibugyo-specific vaccine remains the most critical vulnerability, raising urgent questions about whether this outbreak will finally spur renewed research and development efforts for neglected pathogens.