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.
Chikungunya in Singapore
As of 28 August 2025, Singapore has now reported a total of 21 chikungunya cases for 2025. Please see our Topics in Brief article for further details on chikungunya.
Mpox in Turkey
As of 28 August 2025, a total of three cases of clade Ib mpox have been reported in Turkey since the beginning of 2025. The most recently detected case, diagnosed in late July 2025, reported a history of travel to the United Arab Emirates and Egypt. Two retrospectively reported cases reported a history of travel to Uganda. Please see our Topics in Brief article for further details on mpox.
Chikungunya in Peru
Between 1 January and 9 August 2025 a total of 84 cases were reported, of which 16 were laboratory confirmed and 68 classified as probable. Confirmed cases have been reported in the departments of San Martin (14 cases) and Loreto (2 cases). No deaths have been reported. Please see our Topics in Brief article for further details on chikungunya
cVDPV3 in Chad
As of 28 August 2025, one case of circulating vaccine-derived poliovirus type 3 (cVDPV3) was reported this week, with onset of paralysis on 20 June, from Chari Baguirmi. This is the first cVDPV3 in the country this year. Please see our Topics in Brief article for further details on polio
Oropouche virus disease in Peru
Between 1 January and 26 July 2025, a total of 333 cases have been reported. Please see our Topics in Brief article for further details on Oropouche.
Mpox in Mozambique
As of 24 August 2025, a total of 65 mpox cases, with no deaths, have been confirmed in 2025. Mpox clades Ib and II (a and/or b) has been reported. Please see our Topics in Brief article for further details on mpox.
Acute watery diarrhoea in Afghanistan
As of 16 August, a total of 106,196 cases of acute watery diarrhoea and 50 associated deaths have been reported since the beginning of 2025. Of these cases, 60,585 cases were amongst children aged under 5 years old. The highest incidence rates have been reported from Paktya, Nimroz, Kabul, Khost and Farah.
Hepatitis A in France
As of 19 August 2025, 73 cases of hepatitis A have been reported from the Rhône department in France. This represents a 356% increase in cases compared to the same time period in 2024. Please see our Topics in Brief article for further details on hepatitis A.
cVDPV1 in Israel
Between February and July 2025, nine genetically linked circulating vaccine-derived polio virus type 1 (cVDPV1) positive environmental samples were reported from seven sites in Israel, mainly in Jerusalem and the Central Region. Please see our Topics in Brief article for further details on polio.
Dengue in Nauru
As of 19 August 2025, a total of 379 confirmed dengue cases, with two deaths have been reported since 27 June 2025. Cases are widely distributed across the island, with most cases reported from Aiwo, Baitsi, Boe, Denigomodu and Meneng. Please see our Topics in Brief article for further details on dengue.
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
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Follow standard protective measures, as recommended for this destination, disease or situation. Be aware that advice may change and check for updates. |
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LEVEL 2: AMBER |
Take extra precautions
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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. |
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LEVEL 3: RED |
FCDO advise against travel
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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. |
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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.
