Ebola disease
The outbreak remains a public health emergency of international concern
IXCHIQ chikungunya vaccine marketing authorisation revoked by MHRA
Based on a further benefit-risk assessment for travellers, the UK marketing authorisation has been revoked by MHRA
Getting to grips with Zika virus
Registration is now open for our next 'Getting to Grips' webinar of 2026
NaTHNaC
Natural hazards and health risks
Advice for travellers visiting areas affected by natural hazards
Getting to grips with travellers' diarrhoea
A recording of this session is now available
NaTHNaC
Updated dengue 'green book' chapter published
The dengue chapter of the 'green book' (Immunisation against infectious disease) has been updated
Polio: Public Health Emergency of International Concern
An update on the polio Public Health Emergency of International Concern (PHEIC)
Mefloquine shortage
Shortage of 250mg mefloquine (Lariam) antimalarial tablets in the United Kingdom (UK) continues
Telephone advice line for health professionals: change to opening hours
The advice line opening hours will change from 7 September 2026
Cyclospora and summer travel
A reminder about Cyclospora infection and how to reduce your risk
Diphtheria in Niger
As of 27 September 2026, 949 suspected cases of diphtheria and 36 deaths have been reported in Niger from 50 of 72 health districts. Please see our Topics in Brief article for further details on diphtheria.
Dengue in USA
As of 3 October 2026, 296 cases of locally acquired dengue have been reported in Florida, USA. The outbreak has surpassed Florida's previous annual high of 200 cases, reported in 2023. DENV-2 and DENV-3 have been identified amongst cases in 2026. Please see our Topics in Brief article for further details on dengue.
Dengue in Marshall Islands
As of 25 September 2026, 112 confirmed dengue cases have been reported in the Marshall Islands. DENV-1 has been detected. No dengue cases were reported in the Marshall Islands in 2025. Please see our Topics in Brief article for further details on dengue.
Dengue in Italy
As of 7 October 2026, a total of 68 confirmed locally acquired dengue cases have been reported for 2026 in Italy. Please see our Topics in Brief article for further details on dengue.
Pneumonia, unknown origin in Russia
On 6 October 2026, following the reported death of a laboratory worker in Irkutsk, Russia, the Russian Federation health authorities informed the World Health Organisation (WHO) that no case of plague had been registered recently in Irkutsk Oblast. After testing negative for a number of high-threat pathogens, the patient was determined to have died from pneumonia of undetermined etiology. Based on the information provided, WHO has not identified evidence of ongoing transmission associated with this event. WHO will continue to monitor the situation and assess any potential public health implications as further information becomes available.
Yellow fever in Ghana
As of 8 October 2026, Ghana's Ministry of Health has reported three confirmed fatal yellow fever cases in Upper West Region. An emergency response, including deployment of rapid response teams and a targeted vaccination campaign, is ongoing. Please see our Topics in Brief article for further details on yellow fever.
Occitanie
Île-de-France
Provence Alpes-Côte d’Azur
Chikungunya in France
As of 5 October 2026, a total of 146 locally acquired chikungunya cases have been reported during 2026 in Tarn, Lot (Occitanie), Gironde (Nouvelle-Aquitaine), Val-de-Marne (Île-de-France) and Var (Provence-Alpes-Cote d'Azur) in France. Please see our Topics in Brief article for further details on chikungunya.
Cholera in Nigeria
As of 7 October 2026, a total of 68,152 suspected cholera cases and 394 deaths have been reported in Borno State since this outbreak began in May 2026. All 22 local government areas in Borno have now reported cases. Please see our Topics in Brief article for further details on cholera.
Dengue in Bangladesh
As of 8 October 2026, a total of 94,151 dengue cases, with 294 deaths, have now been reported in Bangladesh during 2026. Please see our Topics in Brief article for further details on dengue.
cVDPV2 in Central African Republic
As of 2 October 2026, five circulating vaccine-derived poliovirus type 2 (cVDPV2) cases have been reported in Central African Republic in 2026. Please see our Topics in Brief article for further details on polio.



