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.

06 August 2025

Mpox in Rwanda

As of 31 July 2025, a total of 124 mpox clade Ib cases, with no deaths, have been confirmed in Rwanda since 2024. Please see our Topics in Brief article for further details on mpox.

15
Take extra precautions
06 August 2025

Mpox in Uganda

As of 31 July 2025, a total of 7,648 mpox clade Ib cases, and 48 deaths, have been confirmed in Uganda since 2024. Please see our Topics in Brief article for further details on mpox.

35
Take extra precautions
06 August 2025

Mpox in South Sudan

As of 31 July 2025, a total of 17 mpox clade Ib cases, with no deaths, have been confirmed in South Sudan for 2025. Please see our Topics in Brief article for further details on mpox.

7
Take extra precautions
06 August 2025

Mpox in Tanzania

As of 31 July 2025, a total of 111 mpox clade Ib cases, with no deaths, have been confirmed in Tanzania for 2025. Please see our Topics in Brief article for further details on mpox.

6
Take extra precautions
06 August 2025

Mpox in Ethiopia

As of 31 July 2025, a total of 27 clade Ib mpox cases and one death have been confirmed in Ethiopia for 2025. Please see our Topics in Brief article for further details on mpox.

1
Take extra precautions
06 August 2025

Mpox in Cameroon

As of 31 July 2025, the World Health Organization has confirmed a total of three fatal mpox cases in Cameroon for 2025. Mpox clades Ia and II (a and/or b) have been reported. Please see our Topics in Brief article for further details on mpox.

1
Take extra precautions
05 August 2025

Dengue in Palau

On 3 July 2025, the Palau Ministry of Health & Human Services identified an imported case of dengue fever. This was the first laboratory-confirmed case of DENV-1 in Palau in over a decade. Since 24 July, five additional cases of dengue fever have been reported among local residents, none of whom have recent travel history. Please see our Topics in Brief article for further details on dengue.

Take usual precautions
05 August 2025

Dengue in Fiji

As of 15 June 2025, the Ministry of Health and Medical Services has reported 10,969 cases of dengue nationally with 4,960 cases in the Western division, 2,868 cases in the Central, 2,867 cases in Northern and 274 cases in the Eastern division. Eight deaths have been confirmed as directly attributed to dengue fever. The outbreak is driven predominantly by DENV-2. Please see our Topics in Brief article for further details on dengue.

3
Take usual precautions
31 July 2025

Cholera in Congo

As of 29 July 2025, 187 cases (6 confirmed), including 21 deaths have been reported since the outbreak started on 23 July 2025. Two departments have reported cases: Brazzaville and Congo-Oubangui. Please see our Topics in Brief article for further details on cholera.

Take usual precautions
31 July 2025
USA

Powassan virus in USA

As of 29 July 2025, 22 Powassan virus disease cases have been reported in 2025 across seven states. Cases of Powassan virus are rare in the US, with less than 50 cases reported per year.

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.