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 14 August 2026, a total of 4,665 confirmed Ebola disease (Bundibugyo virus) cases, and 2,184 deaths, have now been reported across six provinces: Ituri, North Kivu, South Kivu, Tshopo, Haut-Uele and Bas-Uele. Please see our Topics in Brief article for further details on Ebola disease.

32
Take extra precautions
14 August 2026
Spain + Salamanca

Crimean-Congo haemorrhagic fever in Spain

As of 13 August 2026, a case of locally acquired Crimean-Congo haemorrhagic fever (CCHF) has been reported in Salamanca. This is the fourth reported case of CCHF in Spain in 2026, and the third from Salamanca. Please see our Topics in Brief article for further details on Crimean-Congo haemorrhagic fever.

4
Take usual precautions
13 August 2026

Dengue in Malaysia

As of 12 August 2026, a total of 56,319 dengue cases have been reported in Malaysia during 2026. Please see our Topics in Brief article for further details on dengue.

Take usual precautions
13 August 2026
France + Occitanie
Provence Alpes-Côte d’Azur

West Nile virus in France

As of 10 August  2026, a total of six locally acquired West Nile virus cases have now been reported during 2026 in the Occitanie (Aude and Pyrénées-Orientales) and Provence-Alpes-Côte d'Azur (Bouches-du-Rhône and Vaucluse) regions of France. Please see our Topics in Brief article for further details on West Nile virus.

6
Take usual precautions
13 August 2026

West Nile virus in Italy

As of 12 August 2026, a total of 224 locally acquired cases of West Nile virus, with seven deaths (one in an imported case), have now been reported from 55 provinces in 16 regions of Italy during 2026. Please see our Topics in Brief article for further details on West Nile virus.

3
Take usual precautions
13 August 2026
France + Gironde
Occitanie

Chikungunya in France

As of 10 August 2026, a total of 15 locally acquired chikungunya cases have been reported during 2026 in the Nouvelle-Aquitaine (Gironde) and Occitanie (Tarn) regions of France. Please see our Topics in Brief article for further details on chikungunya.

2
Take usual precautions
13 August 2026
Italy + Emilia-Romagna
Lazio
Marche
Lombardy

Usutu virus in Italy

As of 12 August 2026, a total of eight Usutu virus cases have been reported in four regions of Italy during 2026.

1
Take usual precautions
12 August 2026
USA

West Nile virus in USA

As of 11 August 2026, a total of 181 human cases of West Nile virus have been reported across 30 states in the United States this year. Of these, 129 cases were reported to be the neuroinvasive form. The highest number of cases have been reported in Arizona (73 cases), Texas (23 cases), and California (18 cases). Please see our Topics in Brief article for further details on West Nile virus.

Take usual precautions
11 August 2026

Chikungunya in French Guiana

As of 2 August 2026, 1,418 confirmed chikungunya cases have been reported in French Guiana this year. Please see our Topics in Brief article for further details on chikungunya.

5
Take usual precautions
11 August 2026

Dengue in Vanuatu

As of 10 August 2026, 76 cases of dengue have been confirmed in Vanuatu this year. DENV-1 remains the confirmed circulating serotype. Please see our Topics in Brief article for further details on dengue.

1
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
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.

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.