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.

21 July 2025

Mpox in Australia

On 19 July 2025, Queensland Government reported a travel-associated clade I mpox case in Queensland, Australia. This is the second confirmed clade I mpox case reported in Australia. Please see our Topics in Brief article for further details on mpox.

1
Take extra precautions
18 July 2025
Papua New Guinea + Morobe
National Capital

cVDPV2 in Papua New Guinea

As of 16 July 2025, six circulating vaccine-derived poliovirus type 2 (cVDPV2) positive environmental samples have been reported from Morobe and National Capital. These samples were collected on 26 May 2025. Please see our Topics in Brief article for further details on polio.

2
Take usual precautions
14 July 2025
Romania + Bucharest

Malaria in Romania

As of 10 July 2025, a confirmed case of malaria has been reported in a Bucharest resident with no history of recent travel abroad. Epidemiological investigations are ongoing. Please see our Topics in Brief article for further details on malaria.

Take usual precautions
14 July 2025

Measles in United Kingdom

As of 3 July 2025, there have been 529 confirmed measles cases reported in England for 2025. Please see our Topics in Brief article for further details on measles.

Take usual precautions
14 July 2025
USA + Arizona

Pneumonic plague in USA

As of 11 July 2025, a fatal case of pneumonic plague has been reported in an Arizona resident. The risk to the public of exposure to plague is considered to be low.

Take usual precautions
11 July 2025
Australia + New South Wales

Bat lyssavirus in Australia

On 8 July 2025, a man previously reported as being critically ill with bat lyssavirus in New South Wales, died. This is the state's first confirmed case of Australian bat lyssavirus in a human being.

1
Take usual precautions
10 July 2025

Pertussis in Japan

As of 28 May 2025, at total of 22,351 cases of pertussis have been reported in Japan during 2025. Please see our Topics in Brief article for further details on pertussis.

Take usual precautions
10 July 2025

Rabies in Thailand

As of 7 July 2025, a total of seven deaths from rabies have been reported: Chonburi, Sisaket, Chachoengsao, Nakhon Ratchasima (two cases), Tak, and Rayong during 2025. This is three times more than the number of deaths reported for the same period in 2024. Please see our Topics in Brief article for further details on rabies.

Take usual precautions
10 July 2025

Chikungunya in Mauritius

As of 8 July 2025, a total of 1,395 locally acquired chikungunya cases have been reported in Mauritius during 2025. Please see our Topics in Brief article for further details on chikungunya.

2
Take usual precautions
09 July 2025

Zika in Thailand

As of 5 July 2025, seven cases of Zika virus disease have been reported since the start of 2025. The following provinces have reported cases: Nakhon Ratchasima, Buriram, Chaiyaphum and Surin. Please see our Topics in Brief article for further details on Zika virus disease.

7
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.