The Democratic Republic of the Congo's (DRC) 17th Ebola outbreak, caused by the Bundibugyo virus and declared a Public Health Emergency of International Concern (PHEIC) on 17 May 2026, has been spreading across the provinces of Ituri, North Kivu, and South Kivu, with confirmed cross-border transmission into the Ugandan capital, Kampala. Critical containment gaps, including insecurity and conflict, a contact follow-up rate well below the target level, infections among healthcare workers, deficiencies in infection prevention and control (IPC), and a funding shortfall, are sustaining transmission. The absence of an approved vaccine for this species of ebolavirus limits the range of available countermeasures.
On 2 June 2026, WHO reported that the number of suspected cases in the DRC had decreased compared to previous reports after many were ruled out through investigation and testing. This decline reflects case reclassification rather than necessarily reduced transmission.
D.R. Congo: data as of 04 June 2026 (for updates see WHO dashboard and ECDC):
Uganda: data as of 04 June 2026 (for updates see WHO dashboard and ECDC):
Outside Africa:
Entry and exit screenings and control measures:
Several countries and territories reported additional border health or travel-related measures. For most UpToDate information, see IATA LINK.
New documents related to the BVD outbreak in DRC and Uganda:
Authorities are concerned about the risk of further spread due to population high mobility, insecurity, and the proximity of affected areas to Uganda and South Sudan through a porous border.
Distribution of suspected and confirmed Bundibugyo virus disease cases in the Democratic Republic of the Congo and Uganda, as of 29 May 2026:
WHO assesses the risk of the epidemic as very high at the national level, high at regional levels, and low at the global level (including Switzerland and the EU/EEW). For details, see LINK.
ECDC assesses the risk for EU/EEA travellers in affected areas as low if precautions (see under “consequences for travelers”) are followed but emphasizes uncertainties and rapid evolution.
Due to the very recent declaration of the outbreak and the uncertainties related to the
epidemiological information, it is probable that the outbreak is much larger than what is currently
being reported – not only in regards to the number of affected cases, but also in its geographical extent.
The situation is evolving rapidly. Avoid non-essential travel to affected areas in DRC, Uganda, as well as to South Sudan, also due to the security situation (see EDA). In case travel cannot be avoided, see precautions below:
General preventive measures:
Of note: there is currently no licensed vaccine or specific treatment against Ebola diseased caused by Bundibugyo virus. For humanitarian missions, consultation with a travel medicine specialist is recommended.
While in the outbreak area and for 21 days after leaving:
! In case of symptoms such as fever or feeling feverish during your stay in and for 21 days after leaving north-eastern D.R. Congo (province of Ituri, North Kivu, South Kivu) and /or Uganda, especially the affected areas:
Recommendations of the Swiss Expert Committee for Travel Medicine (as of 04 June 2026, subject to change according to the evolving situation):
A suspected case is:
*High-risk exposure includes:
On 15 May 2026, the DRC declared a Bundibugyo Ebola outbreak, while Uganda reported two imported cases. WHO declared a Public Health Emergency of International Concern (PHEIC) on 16 May, see EpiNews 21.5 2026.
As of 26 May 2026:
D.R. Congo:
WHO expects those numbers to keep increasing, given the amount of time the virus was circulating before the outbreak was detected.
Uganda:
Further cases:
Exit screening and control measures:
Authorities are concerned about the risk of further spread due to population high mobility, insecurity, and the proximity of affected areas to Uganda and South Sudan through a porous border.
Distribution of suspected and confirmed Bundibugyo virus disease cases in the Democratic Republic of the Congo and Uganda, as of 24 May 2026:
WHO assesses the risk of the epidemic as very high at the national level, high at regional levels, and low at the global level (including Switzerland and the EU/EEW). For details, see LINK.
ECDC: Due to the very recent declaration of the outbreak and the uncertainties related to the
epidemiological information, it is probable that the outbreak is much larger than what is currently
being reported – not only in regard to the number of affected cases, but also to its geographical
extent.
ECDC assesses the risk for EU/EEA travellers in affected areas as low if precautions (see below) are followed but emphasizes uncertainties and rapid evolution.
ECDC considers that screening of returning travellers from affected areas (DRC, Uganda) would not be an effective measure to prevent introduction to Europe. This consideration is based on the lessons learned and results of the large EVD outbreak in West Africa between 2013 and 2016, where tens of thousands of cases were reported, transmission was ongoing in large urban centres, and hundreds of EU/EEA humanitarian and military personnel were deployed to the affected areas. Screening incoming travellers is time- and resource-consuming and will not effectively identify infected cases.
Priority should instead be given to providing travellers with clear information on symptoms, routes of transmission, and what to do if symptoms develop after arrival in the EU/EEA. For details, see ECDC Threat Assessment, 21 May 2026.
The situation is evolving rapidly. Avoid non-essential travel to affected areas in DRC, Uganda and South Sudan, also due to the security situation (see EDA). In case travel cannot be avoided, see precautions below:
General preventive measures:
Of note: there is currently no licensed vaccine or specific treatment against Ebola diseased caused by Bundibugyo virus. For humanitarian missions, consultation with a travel medicine specialist is recommended.
While in the outbreak area and for 21 days after leaving:
! In case of symptoms such as fever or feeling feverish during your stay in and for 21 days after leaving north-eastern D.R. Congo (province of Ituri, North Kivu, South Kivu) and /or Uganda, especially the affected areas:
Swiss ECTM recommendations (as of 4 June 2026, subject to change according to the evolving situation):
A suspected case is:
Such cases should be isolated, tested, and reported to the Cantonal Physician and the Swiss Federal Office of Public Health within 2 hours.
*High-risk exposure includes:
Measles outbreaks are increasing worldwide.
Measles spread quickly and can be dangerous - protection is simple: get vaccinated!
Swiss recommendations: All persons born after 1963 who have no documented protection against the infection (antibodies or 2 documented vaccinations) should be vaccinated twice with MMR vaccine at one month interval. In the event of an epidemic in the region or contact with a measles case, vaccination is recommended from the age of 6 months.
Hajj, the annual pilgrimage to Makkah (Mecca) in the Kingdom of Saudi Arabia (KSA) is one of the largest gatherings of its kind in the world. This year, Hajj is expected to start on 25 May 2026. Usually approximately three million Muslims from around the world gather in Makkah for Hajj each year.
Umrah is a shorter, non-compulsory pilgrimage for Muslims, which is performed as part of the Hajj ritual, but can also be undertaken at any time.
Information in general:
General precautions:
Required vaccinations (for details, see website of the Ministry of Health of the Kingdom of Saudi Arabia)
Recommended vaccinations:
The Swiss Expert Committee on Travel Medicine (ECTM), together with the national malaria groups of Germany, Belgium, the Netherlands, Austria, and Poland, has updated its recommendations on malaria prevention for travellers.
The 2026 update includes revised country-specific recommendations and maps for countries in Africa and the Americas. In addition, updates were made for Afghanistan, Indonesia, the Philippines, and Saudi Arabia due to a marked increase in local malaria incidence. Further details on the methodology are available in the publication.
Measles outbreaks are increasing worldwide.
Measles spread quickly and can be dangerous - protection is simple: get vaccinated!
Swiss recommendations: All persons born after 1963 who have no documented protection against the infection (antibodies or 2 documented vaccinations) should be vaccinated twice with MMR vaccine at one month interval. In the event of an epidemic in the region or contact with a measles case, vaccination is recommended from the age of 6 months.
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