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.

To view all outbreak updates for a thread, press on the blue circled number below an outbreak post.

09 February 2026
Bangladesh + Naogaon

Nipah virus in Bangladesh

On 6 February 2026, one confirmed fatal Nipah virus disease case was reported in Bangladesh for 2026. This case had no history of travel abroad, but had drunk raw date palm sap. No further cases have been detected; all contacts are being monitored and have tested negative. Bangladesh first reported Nipah virus disease in 2001 and infections have been reported almost every year since, with four confirmed cases in 2025. Risk of international spread is low. Please see our Topics in Brief article for further details on Nipah viral disease.

Take usual precautions
09 February 2026

Yellow fever in Colombia

As of 8 February 2026, a total of 168 confirmed yellow fever cases, including 76 deaths, have now been reported in Colombia since this outbreak began in 2024. Please see our Topics in Brief article for further details on yellow fever.

15
Take usual precautions
06 February 2026

Chikungunya in Suriname

As of 22 January 2026, a total of eight confirmed chikungunya cases have been reported from Suriname. Please see our Topics in Brief article for further details on Chikungunya.

Take usual precautions
06 February 2026

Malaria in Namibia

As of 25 January 2026, a total of 8,760 confirmed cases of malaria have been reported in 2026. Please see our Topics in Brief article for further details on malaria.

1
Take usual precautions
06 February 2026
USA + Florida

Chikungunya in USA

As of 17 January 2026, one confirmed case of chikungunya has been reported from Florida in 2026. Please see our Topics in Brief article for further details on chikungunya.

1
Take usual precautions
05 February 2026

Salmonella in Cape Verde

As of 5 February 2026, a total of 32 confirmed Salmonella cases were reported in travellers from England, Scotland and Wales who have visited Cape Verde since 1 October 2025. Please see UKHSA guidance for further information on Salmonella.

Take usual precautions
05 February 2026
Australia + New South Wales

Japanese encephalitis in Australia

As of 13 January 2026, a probable case of Japanese encephalitis was reported in a New South Wales resident. This case is believed to have been exposed in Riverina in December 2025. Health authorities also advise in January 2026 that the virus was detected in a chicken in Upper Lachlan Shire, near Goulburn. This indicates that Japanese encephalitis is likely to be circulating in this area. Please see our Topics in Brief article for further details on Japanese encephalitis.

5
Take usual precautions
05 February 2026

Shigella sonnei in Cape Verde

As of 5 February 2026, a total of 112 confirmed Shigella sonnei cases were reported in travellers from England, Scotland and Wales who have visited to Cape Verde since 1 October 2025. Most of these travellers visited Santa Maria and Boa Vista. Previously, a Shigella sonnei outbreak was reported in Cape Verde in 2022, with cases in travellers from European countries, including the UK. Please see UKHSA guidance for more further information on Shigella sonnei.

1
Take usual precautions
02 February 2026

Chikungunya in Seychelles

Between early December 2025 and 30 January 2026, GeoSentinel surveillance reported nine confirmed and four probable cases of chikungunya virus disease in European travellers returning from the Seychelles. Please see our Topics in Brief article for further details on chikungunya.

Take usual precautions
02 February 2026

Mpox in Comoros

As of 26 January 2026, nine confirmed cases of mpox (clade Ib) have been reported in Comoros. All primary cases reported recent travel to Madagascar which is currently reporting an mpox outbreak. Please see our Topics in Brief article for further details on mpox.

Take extra precautions

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
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
Follow Foreign, Commonwealth & Development Office (FCDO) advice. This may mean avoiding non-essential travel, or all travel. Subscribe to the FCDO destination advice for security updates and travel warnings.

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.