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.
cVDPV2 in United Kingdom
As of 26 March 2026, vaccine-derived poliovirus type 2 (cVDPV2) has been detected in two unrelated environmental sewage sample collected in London between January and March 2026. Sporadic vaccine-derived poliovirus type 2 (cVDPV2) environmental samples have been identified in various regions since 2022. There is no evidence of community transmission in the UK, and the risk to the public is low. Please see our Topics in Brief article for further details on polio.
As of 12 November 2025, vaccine-derived poliovirus type 2 (VDPV2) has been detected in an environmental sewage sample collected in Yorkshire and the Humber on 16 September 2025. This is the second cVDPV2 positive environmental sample reported in the UK for 2025. Please see our Topics in Brief article for further details on polio.
Source: GPEIYellow fever in Trinidad and Tobago
On 24 March 2026, the Trinidad and Tobago Ministry of Health reported a confirmed detection of yellow fever in a deceased monkey. No human cases have been detected. Health authorities are conducting surveillance and vector control measures in the area where the monkey was found. The last significant yellow fever outbreak in Trinidad occurred in 1979. Please see our Topics in Brief article for further details on yellow fever.
Mpox in Central African Republic
As of 26 March 2026, clade Ib mpox has been reported in Central African Republic for the first time. Please see our Topics in Brief article for further details on mpox.
As of 2 February 2025, a total of 145 confirmed mpox cases and 4 deaths have been reported in Central African Republic. Clade Ia mpox has been isolated from confirmed cases. Please see our Topics in Brief article for further details on mpox.
Source: WHOAs of 24 January 2025, a total of 142 confirmed mpox cases have been reported in the Central African Republic. Clade Ia mpox has been isolated from confirmed cases. Please see our Topics in Brief article for further details on mpox.
Source: WHOAs of 12 January 2025, 95 confirmed cases and three deaths from mpox have been reported in Central African Republic. Clade Ia mpox has been isolated from confirmed cases. Please see our Topics in Brief article for further details on mpox.
Source: WHOAs of 29 December 2024, 90 confirmed cases and three deaths from mpox have been reported in Central African Republic. Clade Ia mpox has been isolated from confirmed cases. Please see our Topics in Brief article for further details on mpox.
Source: WHOAs of 1 December 2024, 85 confirmed cases and 2 deaths from mpox have been reported in Central African Republic. Clade Ia mpox has been isolated from confirmed cases. Please see our Topics in Brief article for further details on mpox.
Source: WHOSince the beginning of 2024 and up to 16 August, a total of 263 cases (40 confirmed) have been reported. Of the confirmed cases, 43 percent have been in children under the age of 15 years. Clade I mpox has been isolated from confirmed cases.
Source: Africa CDCAs of 28th July, a total of 28 confirmed and 185 suspected cases of mpox have been reported from six of seven health regions. Of the total confirmed cases, children under the age of 15 accounted for 43 percent of cases.
Source: Africa CDCMeningococcal disease in DRC
As of 13 March 2026, a total of 24 suspected cases (including three confirmed and nine deaths) of meningococcal disease have been reported from the Mangembo Health Zone of Kongo Central Province. Some cases have been confirmed as Neisseria meningitidis serogroup W135. Please see our Topics in Brief article for further details on meningococcal disease.
Toamasina
Antsirabe
Chikungunya in Madagascar
As of 8 February 2026, a total of 29 confirmed chikungunya cases have been reported in Madagascar since January 2026. Most cases have been reported from Mahajanga (21 cases), followed by Toamasina (7 cases) and Antsirabe (1 case). Please see our Topics in Brief article for further details on chikungunya.
Between 1 May 2025 and 28 May 2025 six cases of chikungunya in France, imported from Madagascar, were reported. Please see our Topics in Brief article for further details on chikungunya.
Source: StateMpox in Réunion
As of 20 March 2026, seven confirmed mpox cases clade Ib (three of which were imported from Madagascar) have been reported in Réunion for 2026. Please see our Topics in Brief article for further details on mpox.
As of 10 February 2026, two confirmed mpox cases, linked to travel to Madagascar, have been reported in Réunion for 2026. No epidemiological link has been established between these two cases. Contract tracing and a reactive vaccine campaign are ongoing. Please see our Topics in Brief article for further details on mpox.
Source: StateMeningococcal disease in United Kingdom
As of 23 March 2026, a total of 20 confirmed meningococcal disease cases, with two deaths, have been reported in Kent. 19 of these cases have been confirmed as group B meningococcal disease. A further nine suspected cases are under investigation, bringing the total to 29 cases. A targeted vaccination programme has started and preventative antibiotic treatment is being offered to possible contacts as a precautionary measure. Please see our Topics in Brief article for further details on meningococcal disease.
As of 17 March 2026, a total of nine confirmed meningococcal disease cases, with two deaths, have been reported in Kent. Some cases have been confirmed as group B meningococcal disease. A further 11 suspected cases are under investigation, bringing the total to 20 cases. A targeted vaccination programme has started and preventative antibiotic treatment is being offered to possible contacts as a precautionary measure. Please see our Topics in Brief article for further details on meningococcal disease.
Source: UKHSAAs of 17 March 2026, a total of four confirmed meningococcal disease cases, with two deaths, have been reported in Kent. Some cases have been confirmed as group B meningococcal disease. A further 11 suspected cases are under investigation. A targeted vaccination programme has started and preventative antibiotic treatment is being offered to possible contacts as a precautionary measure. Please see our Topics in Brief article for further details on meningococcal disease.
Source: UKHSAHepatitis A in Italy
As of 19 March 2026 there have been 65 cases of hepatitis A confirmed in the Campania region, which includes the cities of Naples and Capri. It appears that the cases are connected to the consumption of infected seafood. Please see our Topics in Brief article for further details on hepatitis A.
Mpox in Argentina
As of 16 March 2026, one mpox clade Ib case was reported in Argentina in an adult with no recent travel abroad, but a history of sexual contact with multiple people including travellers, in the period before onset of symptoms. This is the first locally acquired case of mpox clade Ib reported in Argentina. Please see our Topics in Brief article for further details on mpox.
Mpox in Czechia
As of 16 March 2026, a total of four mpox clade Ib cases have been confirmed in Czechia. According to the World Health Organization, two of the cases reported travel history to Germany. Please see our Topics in Brief article for further details on mpox.
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.
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