Ebola disease in DRC
Case numbers continue to rise in the Democratic Republic of the Congo; this is now the country's largest recorded outbreak and remains a public health emergency of international concern
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)
Telephone advice line for health professionals: change to opening hours
The advice line opening hours will change from 7 September 2026
Mefloquine shortage
Shortage of 250mg mefloquine (Lariam) antimalarial tablets in the United Kingdom (UK) continues
Cyclospora and summer travel
A reminder about Cyclospora infection and how to reduce your risk
Changes to NaTHNaC telephone contact numbers
Our Advice Line and General Enquiries telephone number change has been deferred to Autumn 2026
Updated tick-borne encephalitis (TBE) ‘green book’ chapter published
The TBE chapter of the 'green book' (Immunisation against infectious disease) has been updated
Lusaka
Northern
Southern
Cholera in Zambia
On 30 September 2026, Zambia's Ministry of Health declared a new cholera outbreak. As of 29 September 2026, there have been 304 cases, of which 62 cases have been laboratory confirmed, with 11 deaths. Cases have been reported in 7 districts across 5 provinces. Please see our Topics in Brief article for further details on cholera.
Yellow fever in Cote d'Ivoire
Between 1 January and 23 August 2026, a total of 14 yellow fever cases, with 2 deaths, have been reported in eight health districts of Cote d'Ivoire. Please see our Topics in Brief article for further details on yellow fever.
South Carolina
Utah
Measles in USA
As of 24 September 2026, 3,659 confirmed measles cases have been reported across 47 states in the United States, during 2026. This exceeds the number of cases reported for the whole of 2025 and is the highest number of measles cases reported in the US for 35 years. The highest number of cases have been reported in Pennsylvania (850), followed by South Carolina (670) and Utah (535). Please see our Topics in Brief article for further details on measles.
Diphtheria in Senegal
As of 13 August 2026, a total of 13 cases of diphtheria and two deaths have been reported. Please see our Topics in Brief article for further details on diphtheria.
Borno
Kano
Katsina
Sokoto
Diphtheria in Nigeria
Between 1 January and 23 August 2026, a total of 16,997 cases of diphtheria and 596 deaths have been reported. Most cases have been reported from Kano, Bauchi, Katsina, Borno and Sokoto states. Please see our Topics in Brief article for further details on diphtheria.
Occitanie
Île-de-France
Provence Alpes-Côte d’Azur
Chikungunya in France
As of 28 September 2026, 125 locally acquired cases of chikungunya have been identified in France, in Tarn, Lot, Gard (Occitanie), Gironde, Landes (Nouvelle-Aquitaine), Val-de-Marne (Ile-de-France) and Var (Provence-Alpes-Cote d'Azur). Please see our Topics in Brief article for further details on chikungunya.
North Kivu
South Kivu
Bas-Uele
Tshopo
Haut-Uele
Sud-Ubangi
Ebola disease in DRC
As of 26 September 2026, 8,067 confirmed Ebola disease (Bundibugyo virus) cases and 3,901 deaths have been reported in seven provinces: Ituri, North Kivu, South Kivu, Tshopo, Haut-Uele, Bas-Uele and South Ubangi. Please see our Topics in Brief article for further details on Ebola disease.
West Nile virus in Kosovo
In 2026, up to 23 September, two locally acquired human cases of West Nile virus have been reported in Kosovo, in two areas. Please see our Topics in Brief article for further details on West Nile virus.
West Nile virus in North Macedonia
In 2026, up to 23 September, 69 locally acquired human cases of West Nile virus have been reported in North Macedonia, in five areas. Please see our Topics in Brief article for further details on West Nile virus.
West Nile virus in Romania
In 2026, up to 23 September, 91 locally acquired human cases of West Nile virus have been reported in Romania, across 22 areas. Please see our Topics in Brief article for further details on West Nile virus.



