Please note that not all cases of disease or outbreaks are reported; some outbreaks may only be reported if they occur outside of the usual recognised risk area or season, or they have been reported in greater than usual numbers. See 'About Outbreaks' tab below for further detail.
For further information on red, amber and green alert categories, see About Outbreaks tab.
Ebola disease in DRC
As of 15 June 2026, 837 confirmed cases of Ebola disease, with 196 deaths have been reported in the Democratic Republic of the Congo. Please see our Topics in Brief article for further details on Ebola disease.
Ebola disease in Uganda
As of 14 June 2026, 19 confirmed cases of Ebola disease and one probable case, including two confirmed and one probable death, have been reported in Uganda. Please see our Topics in Brief article for further details on Ebola disease.
Yellow fever in Colombia
As of 14 June 2026, a total of 51 confirmed yellow fever cases, including 24 deaths have been reported since the start of the year. Please see our Topics in Brief article for further details on yellow fever.
Dengue in Sri Lanka
As of 15 June 2026, Sri Lanka has reported over 41,000 dengue cases in 2026. Please see our Topics in Brief article for further details on dengue.
Chikungunya in Suriname
As of 16 May 2026, a total of 7,484 chikungunya cases (3,389 confirmed) have been reported in Suriname for 2026. Please see our Topics in Brief article for further details on chikungunya.
Diphtheria in Haiti
Between 1 January and 26 May 2026, 1,616 suspected cases of diphtheria have been reported in Haiti, of which 159 cases and five deaths were confirmed. Confirmed cases have been reported in all ten departments of the country. Please see our Topics in Brief article for further details on diphtheria.
Plague in USA
On 11 June 2026, the first fatal human case of plague for 2026 was reported in New Mexico. The case was detected in Santa Fe County. Please see our Topics in Brief article for further details on plague.
Murray Valley encephalitis in Australia
On 10 June 2026, local health authorities in Western Australia reported a death from Murray Valley encephalitis (MVE). The case was likely exposed in the West Kimberley region. Health surveillance programs continue to detect MVE activity across the Kimberley and Pilbara regions. Travellers should avoid mosquito bites.
Mpox in Madagascar
Between 18 December 2025 and 9 June 2026, a total of 2,000 confirmed mpox cases and seven deaths have been reported in Madagascar. Clade Ib mpox has been detected amongst confirmed cases. Please see our Topics in Brief article for further details on mpox.
Hantavirus in Tristan de Cunha ex cruise ship
As of 10 May 2026, the UK Health Security Agency have confirmed a case of Andes virus linked to MV Hondius cruise ship outbreak on Tristan de Cunha. This case was previously noted as a probable case and does not alter the total of 13 cases (three deaths) linked to this outbreak. Please see our Topics in Brief article for further details on hantavirus.
Welcome to our outbreak surveillance section. This page contains information on disease outbreaks and other incidents that are considered to be of relevance to UK travellers.
You can search the information by disease or by country.
We regularly review and update information on overseas disease outbreaks and other health issues that may affect the UK traveller. The information comes from a wide variety of sources, and can be used along with the Country Information section of our website where you will find recommendations on vaccines, malaria and other risks for each country (where relevant). Please note that not all cases of disease or outbreaks are reported.
You can search our Outbreak Surveillance information by disease or by country.
In some countries, there may be limited surveillance and reporting processes in place so information can be difficult to obtain. Some diseases may only be reported if they occur outside of the usual recognised risk area or season, or they have been reported in greater than usual numbers. Outbreaks of those diseases included in the UK childhood vaccination programme are not usually reported unless the outbreak is unusual or unexpected.
If you wish to use the following content for official purposes, please refer to the original sources of information. The information presented in the disease surveillance reports is collated from a variety of sources, including government bodies, international organisations and the media. The verification status of each report is clearly indicated. Verified reports are confirmed by official sources. Some unverified reports are included to ensure timely dissemination of information and where possible we will try to substantiate these reports, although confirmation may not always be possible. Unverified reports may be subject to change, misreporting and may later prove to be unsubstantiated. They should not therefore be regarded as official.
Where available, a web link is provided to the original information source. We cannot accept responsibility for the sites to which it links, or for the information found on those sites. Linking to outside sites does not in any way imply endorsement of these sites.
Key to NaTHNaC alert level feature
LEVEL 1: GREEN |
Take usual precautions
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Follow standard protective measures, as recommended for this destination, disease or situation. Be aware that advice may change and check for updates. |
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LEVEL 2: AMBER |
Take extra precautions
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Follow any additional precautions recommended. Be alert and check regularly for changes in advice about this ongoing situation. Advice may be relevant for all travellers or apply to a specific group of travellers. |
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LEVEL 3: RED |
FCDO advise against travel
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The Foreign, Commonwealth & Development Office (FCDO) advise against travel on health grounds. Please note we do not report on FCDO specific travel advice where the FCDO advises British people against ‘all but essential travel’ or ‘all travel’ to a particular country. For changes to travel advice for a specific country, you can sign up to receive email alerts. |
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Alert categories are based on the situation at the time of publication. They will not be routinely updated unless outbreak information or a news item is updated.
The categories do not replace Foreign, Commonwealth and Development Office (FCDO) travel advice. Travellers should still check the FCDO travel advisories for any country-specific security or safety alerts.

