Marburg virus disease, Mpox and Oropouche outbreaks
Marburg virus disease has been reported in Ethiopia. Multi-country outbreaks of mpox clade I and Oropouche are ongoing. Keep up to date with these links if you are travelling to affected areas.
Travel safely this festive season – check our tips to enjoy your trip
Be alert and stay accident aware abroad
Off on a winter break? Check our winter travel advice before you go
Remember to think ahead when planning a winter break
Natural hazards and health risks
Advice for travellers visiting areas affected by natural hazards
Shigella cases reported in travellers returning from Cape Verde
A food and water hygiene reminder
NaTHNaC Telephone Advice Line for health professionals
Temporary opening hours for our advice line over the holiday period have been finalised
Country Information updates: Japanese encephalitis vaccine recommendations
NaTHNaC has reviewed and updated the Japanese encephalitis (JE) country-specific information and vaccine recommendations
Marburg virus disease in Ethiopia
The World Health Organization has reported a Marburg virus disease outbreak in Ethiopia
Ebola disease in DRC
On 1 December 2025, the Democratic Republic of the Congo declared the outbreak of Ebola disease over
Avloclor (chloroquine tablets) discontinued and Malarivon (chloroquine syrup) out of stock
Updated information for health professionals on the supply of chloroquine for malaria chemoprophylaxis
Country Information updates: meningococcal disease
NaTHNaC has reviewed the country-specific meningococcal disease information and meningococcal (meningitis) ACWY vaccine recommendations for United Kingdom (UK) travellers on the TravelHealthPro website
Chikungunya in Thailand
As of 29 December 2025, a total of 1,379 chikungunya cases have been reported in Thailand for 2025. Compared to the same period in 2024, the number of cases reported in 2025 is approximately double. The northern region, particularly Chiang Mai, is reporting the highest number of cases. Please see our Topics in Brief article for further details on chikungunya.
Chikungunya in Brazil
As of 20 December 2025, a total of 247,268 chikungunya cases, and 120 deaths, have been reported for 2025 in Brazil. Please see our Topics in Brief article for further details on chikungunya.
Chikungunya in India
As of 29 December 2025, a total of 108,379 suspected and 4,995 confirmed chikungunya cases have been reported in India for 2025. Gujarat, Karnataka and Maharashtra states reported the highest number of confirmed cases. Please see our Topics in Brief article for further details on chikungunya.
Chikungunya in China
As of 29 December 2025, a total of 29,497 locally confirmed chikungunya cases have been reported in China for 2025. Please see our Topics in Brief article for further details on chikungunya.
Chikungunya in Hong Kong
As of 29 December 2025, a total of 77 confirmed chikungunya cases (nine classified as local), including one death, have been reported in Hong Kong for 2025. Please see our Topics in Brief article for further details on chikungunya.
Lassa fever in Nigeria
As of 14 December 2025, a total of 9,164 suspected Lassa fever cases (1,097 confirmed with 201 deaths) have been reported since the start of 2025. Confirmed cases have been reported in 21 states, with 89% of confirmed cases reported from Ondo, Bauchi, Edo and Taraba. Please see our Topics in Brief article for further details on Lassa fever.
Dengue in Guatemala
As of 29 November 2025, a total of 44,654 dengue cases, with six deaths, have been reported in Guatemala for 2025. Serotypes DENV-1, DENV-2 and DENV-3 have been reported. Please see our Topics in Brief article for further details on dengue.
Mpox in Romania
On 22 December 2025, the World Health Organization reported the first detection of mpox clade Ib in Romania. This case was confirmed in an adult with history of travel to China in August 2025. No additional cases have been reported in Romania. Please see our Topics in Brief article for further details on mpox.
Dengue in Mexico
As of 13 December 2025, a total of 141,421 dengue cases (21,344 confirmed) with 85 deaths, have been reported in Mexico for 2025. Serotypes DENV-1, DENV-2, DENV-3 and DENV-4 have all been reported. Please see our Topics in Brief article for further details on dengue
Hantavirus in Argentina
As of 20 November 2025, 66 cases of hantavirus pulmonary syndrome (including 21 deaths) have been reported in Argentina during 2025. The Central Region has reported 64% of cases. Please see UKHSA guidance for more details on hantavirus.



