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Ebola, Marburg and Oropouche outbreaks

Ebola cases have been reported in Democratic Republic of Congo and Uganda. A case of Marburg virus disease has been reported in Uganda and multi-country outbreak of Oropouche is ongoing. Keep up to date with the news and outbreak information if you are travelling to affected areas.

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23 July 2026
Democratic Republic of the Congo + Ituri
North Kivu
South Kivu
Haut-Uele

Ebola disease in DRC

As of 21 July 2026, a total of 2536 confirmed Ebola disease (Bundibugyo virus) cases, and 1033 confirmed deaths, have now been reported in five provinces: Ituri, North Kivu, South Kivu, Tshopo and Haut-Uele. Please see our Topics in Brief article for further details on Ebola disease.

Take extra precautions
22 July 2026

Chikungunya in Costa Rica

On 13 July 2026, the U.S. Embassy in Costa Rica reported an outbreak of chikungunya in Playa Langosta and the surrounding Guanacaste coast including the Santa Cruz area. 45 suspected cases (four confirmed, 17 probable) have been recorded. On 16 July 2026 the US CDC issued a Travel Alert regarding an increased risk of chikungunya to travellers visiting this area. Please see our Topics in Brief article for further details on chikungunya.

Take usual precautions
22 July 2026

Hantavirus in Venezuela

As of 21 July 2016, three deaths from hantavirus have been reported in Boca del Pao, Anzoátegui State. Please see UKHSA guidance for more details on hantavirus.

Take usual precautions
22 July 2026

Dengue in Peru

As of 28 June 2026, 34,820 cases (36 deaths) of dengue have been reported in Peru since the start of the year. A total of 39,211 cases (56 deaths) were reported during the whole of  2025. Serotypes DENV-1, DENV-2 and DENV-3 have been recorded. Please see our Topics in Brief article for further details on dengue.

Take usual precautions
22 July 2026

Crimean-Congo haemorrhagic fever in Afghanistan

The World Health Organization have reported 483 suspected cases (21 deaths) of Crimean-Congo haemorrhagic fever (CCHF) during June 2026 alone. This represents a 174% increase compared to the 176 cases and nine deaths reported in the May 2026. Please see our Topics in Brief article for further details on CCHF.

Take usual precautions
21 July 2026

Measles in Guatemala

As of 11 July 2026, a total of 27,145 measles cases have been reported in 2026. The substantial increase in case numbers reflects a retrospective update of cases in Guatemala and a change in case reporting. Please see our Topics in Brief article for further details on measles.

Take usual precautions
20 July 2026

West Nile virus in Italy

As of 17 July 2026, a total of 21 cases of West Nile Virus have been reported in Italy. Please see our Topics in Brief article on West Nile virus.

Take usual precautions
20 July 2026
Spain + Salamanca

Crimean-Congo haemorrhagic fever in Spain

As of 15 July 2026, a second case of locally acquired Crimean-Congo haemorrhagic fever (CCHF) has been reported in Salamanca. The timing of these cases aligns with the expected seasonal pattern of CCHF in Spain. Please see our Topics in Brief article for further details on Crimean-Congo haemorrhagic fever.

Take usual precautions
20 July 2026
USA

Legionnaires' disease in USA

As of 20 July 2026, 76 confirmed cases of Legionnaires' disease, including 4 deaths have been reported in a community cluster in Upper East Side neighbourhoods of Carnegie Hill and Yorkville, New York City.

Take usual precautions
20 July 2026
USA

Cyclosporiasis in USA

As of 18 July 2026, over 1,644 confirmed cases of Cyclospora have been reported in a multistate outbreak since 1 May 2026. An additional 5,100 cases are under investigation. Cases have been linked to contaminated shredded iceberg lettuce.

Take usual precautions
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Advice Line for health professionals

020 7383 7474

This number is due to change on 24 August 2026


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