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.

12 January 2026

Cholera in Angola

Between 1 January and 24 December 2025, a total of 36,077 cases of cholera have been reported in Angola. Please see our Topics in Brief article for further details on cholera.

5
Take usual precautions
12 January 2026

Cholera in Myanmar

Between 1 January and 8 December 2025, a total of 2,378 cases of cholera have been reported in Myanmar. Please see our Topics in Brief article for further details on cholera.

1
Take usual precautions
12 January 2026

MERS-CoV in Saudi Arabia

As of 5 January 2026, a total of 17 cases of Middle East respiratory syndrome coronavirus (MERS-CoV) infection have been reported in Saudi Arabia since the start of 2025. The most recent cases, reported between September and December 2025, were from the regions of Makkah, Riyad and Najran. Please see our Topics in Brief article for further details on MERS-CoV.

2
Take usual precautions
12 January 2026
Tanzania + Mwanza

cVDPV2 in Tanzania

As of 7 January 2026, two circulating vaccine-derived poliovirus type 2 (cVDPV2) positive environmental samples were reported from specimens collected on 16 December 2025 in Mwanza. Please see our Topics in Brief article for further details on polio.

1
Take usual precautions
12 January 2026

Cholera in Burundi

Between 1 January and 24 December 2025, a total of 2,984 cases of cholera (13 deaths) have been reported in Burundi. Please see our Topics in Brief article for further details on cholera.

1
Take usual precautions
02 January 2026

Hantavirus in Panama

Between 1 January and 17 December 2025, the Ministry of Health in Panama have reported 27 cases of hantavirus. In addition, 22 cases of hantavirus cardiopulmonary syndrome have been reported. This is a doubling of recorded cases compared to 2024. Please see UKHSA guidance for more further information on hantavirus.

Take usual precautions
29 December 2025

Chikungunya in Thailand

As of 29 December 2025, a total of 1,379 chikungunya cases have been reported in Thailand for 2025. Compared to the same period in 2024, the number of cases reported in 2025 is approximately double. The northern region, particularly Chiang Mai, is reporting the highest number of cases. Please see our Topics in Brief article for further details on chikungunya.

Take usual precautions
29 December 2025

Chikungunya in Brazil

As of 20 December 2025, a total of 247,268 chikungunya cases, and 120 deaths, have been reported for 2025 in Brazil. Please see our Topics in Brief article for further details on chikungunya.

6
Take usual precautions
29 December 2025

Chikungunya in India

As of 29 December 2025, a total of 108,379 suspected and 4,995 confirmed chikungunya cases have been reported in India for 2025. Gujarat, Karnataka and Maharashtra states reported the highest number of confirmed cases. Please see our Topics in Brief article for further details on chikungunya.

3
Take usual precautions
29 December 2025

Chikungunya in China

As of 29 December 2025, a total of 29,497 locally confirmed chikungunya cases have been reported in China for 2025. Please see our Topics in Brief article for further details on chikungunya.

3
Take usual precautions

NaTHNaC regularly review and update information on disease outbreaks and other health issues that may affect the UK traveller. You can search the information by disease or by country in our Outbreak Surveillance section.

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. 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.

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. If you wish to use the following content for official purposes, please refer to the original sources of information.

Key to NaTHNaC alert level feature

LEVEL 1: GREEN
Take usual precautions
Follow standard protective measures, as recommended for this destination, disease or situation. Be aware that advice may change and check for updates.
LEVEL 2: AMBER
Take extra precautions
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.
LEVEL 3: RED
FCDO advise against travel
The Foreign, Commonwealth & Development Office (FCDO) advise against travel on health grounds. This may mean avoiding non-essential travel, or all travel, follow the FCDO advice for details. Please note we do not report on FCDO safety and security alerts. Travellers should check the FCDO travel advisories for their destination for this information.

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.