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.

22 January 2026

Yellow fever in Colombia

Between 2024 and 21 January 2026, a total of 157 confirmed yellow fever cases, including 70 deaths, were reported in Colombia. The departments of Caldas, Caquetá, Cauca, Guaviare, Huila, Meta, Nariño, Putumayo, Tolima and Vaupes have all reported fatal cases. Tolima department remains the most affected with 137 cases (55 deaths). Please see our Topics in Brief article for further details on yellow fever.

14
Take usual precautions
22 January 2026

Mpox in Madagascar

Between 17 December 2025 and 20 January 2026, Madagascar reported 395 mpox cases (133 confirmed) across 20 regions. Clade Ib has been detected in the country. Please see our Topics in Brief article for further details on mpox.

1
Take extra precautions
21 January 2026

Dengue in Nigeria

Health authorities in Nigeria state that a total of 735 (219 confirmed) dengue cases, with two deaths, were reported between January and November 2025. Most cases were reported in Edo (537 cases) and Sokoto (96 cases) states. Please see our Topics in Brief article for more details on dengue.

Take usual precautions
20 January 2026
Malawi + Balaka
Blantyre
Neno

Cholera in Malawi

As of 17 January 2026, there have been 280 suspected cases including 31 confirmed cases across nine districts. The majority (eight cases) have been in Blantyre, followed by Neno and Balaka with one case each. See our Topics in Brief article for further details on cholera.

Take usual precautions

Marburg virus disease in South Sudan ex Ethiopia

As of 12 January 2026, a total of three suspected Marburg virus disease cases have been reported in South Sudan. Two of these suspected cases travelled to Marburg virus disease affected areas in Ethiopia in November 2025 and one suspected case is believed to be possible community spread. Please see our Topics in Brief article for more details on Marburg virus disease.

Take extra precautions
14 January 2026
India + West Bengal

Nipah virus in India

On 13 January 2026, two cases of Nipah virus were confirmed. Both cases are receiving hospital treatment. These cases are the first in West Bengal in 19 years. This is the 9th Nipah virus outbreak in India since the first outbreak in 2001. Between 2018 and 2025 outbreaks have been reported almost annually in Kerala. Please see our Topics in Brief article for further details on Nipah virus.

Take usual precautions

Mpox in Mexico ex Germany

On 9 January 2026, the World Health Organization reported a clade Ib mpox case in Mexico. The case is an adult male with a travel history to Germany. This is the first clade Ib mpox case reported in Mexico. Please see our Topics in Brief article for further details on mpox.

Take extra precautions
13 January 2026

Cholera in Mozambique

In 2025, a total of 5,787 confirmed cholera cases and 68 deaths have been reported from eight out of ten provinces in Mozambique. In the past four weeks, a 70 percent increase in cholera cases has been reported. Please see our Topics in Brief article for further details on cholera.

2
Take usual precautions
12 January 2026

Cholera in Somalia

Between 1 January and 24 December 2025, a total of 8,763 cases of cholera (nine deaths) have been reported in Somalia. Please see our Topics in Brief article for further details on cholera.

Take usual precautions
12 January 2026

WPV1 in Pakistan

Wild poliovirus type 1 (WPV1) continues to be reported in Pakistan with 30 human cases recorded during 2025. As of 7 January 2026, 36 WPV1-positive environmental samples were reported from specimens collected in November and December 2025 across the country. Please see our Topics in Brief article for further details on polio.

Take usual 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.