The US Centers for Disease Control and Prevention (CDC) renewed its Ebola-related entry suspension for 30 days on August 12. The order took effect at 5:00 p.m. Eastern Daylight Time that day and applies to flights departing after 4:59 p.m.

The suspension covers noncitizens who were present in the Democratic Republic of the Congo (DRC), Uganda or South Sudan during the previous 21 days, regardless of their country of origin. Uganda remains listed after declaring its outbreak over, while South Sudan remains listed despite reporting no confirmed cases.

Who the US order covers

The order uses the legal term "covered aliens" for the noncitizens within its scope. It expressly includes US lawful permanent residents and makes recent presence in one of the three listed countries, rather than passport nationality, the main geographic test.

US citizens and US nationals are exempt. The order also exempts specified US military and government personnel and their families when the required public health assurances are in place. Customs officers may approve case-specific exceptions with a supervisor, and the CDC may provisionally grant an exception through a process approved by the US Department of Homeland Security.

The scope widened after the first order

The CDC issued the initial suspension on May 18 and amended it four days later. The US Federal Register says the May 22 amendment reflected a regulatory change that removed the previous exemption for lawful permanent residents.

The CDC continued the suspension on June 21, July 13 and August 12. The latest order relies on Sections 362 and 365 of the US Public Health Service Act, codified at 42 U.S.C. Sections 265 and 268, and the implementing rule at 42 C.F.R. Section 71.40. It says another 30 days are needed to assess whether the importation risk has materially changed, but it states no numerical threshold for removing an individual country.

A laboratory worker wearing gloves handles sample tubes inside a biosafety cabinet (illustrative image)
A laboratory worker handles sample tubes inside a biosafety cabinet (illustrative image).

Uganda remains listed after ending its outbreak

The World Health Organization (WHO) reported that Uganda declared the outbreak over on July 28 after 42 days without a new locally transmitted confirmed case. The last patient in that transmission chain left care on June 16, while the most recent imported patient was discharged on July 16 after two negative tests.

The August order acknowledges Uganda's declaration but says continued overland movement from the DRC creates a risk of another importation, particularly in western Ugandan districts that receive patients crossing the border. It says South Sudan has reported no confirmed cases but remains at risk because of its border with affected areas, population movement and limits in health infrastructure.

Congo's expanding outbreak drives the US rationale

The August order says the DRC had reported 4,318 confirmed cases and 2,011 deaths by August 9, more than twice the totals recorded when the July 13 order was issued. It also puts nationwide contact follow-up at about 78 percent, below the 95 percent operational target cited in the document.

The CDC treats the continuing DRC outbreak and movement across nearby borders as a single importation risk. That reasoning keeps Uganda and South Sudan in the order even though their domestic epidemiological positions differ sharply from the DRC.

International agencies favor narrower measures

WHO's August 1 assessment advises against travel or trade restrictions on affected countries. It calls for surveillance, preparedness and cross-border coordination while recognizing that Uganda remains exposed to imported cases from the DRC.

Africa Centres for Disease Control and Prevention guidance says blanket travel bans are not supported by public health evidence and recommends risk-based screening, surveillance and early detection instead. The June guidance says broad restrictions can obstruct health workers, laboratory samples and emergency supplies.

The US order reaches a different policy judgment. It says reducing the number of covered arrivals allows US airport, laboratory and public health resources to concentrate on a smaller group of returning citizens, nationals and exempt travelers. The document does not provide a country-by-country removal formula that would reconcile that approach with WHO and Africa CDC guidance.

Exemption does not always mean ordinary arrival processing

The CDC says the August 12 order operates alongside separate boarding, airport-routing and enhanced-screening measures. US citizens and nationals are exempt from this entry suspension, but recent presence in one of the listed countries can still change the route or screening process used on arrival.

The order's 21-day lookback makes itinerary history the central question for covered noncitizens. Its humanitarian, public safety and public health exceptions require individual approval and do not create a general exemption for residents, workers or business travelers.