Ebola disease
The outbreak remains a public health emergency of international concern
Heading to the Youth Olympic Games in Senegal, West Africa, this autumn?
Make sure you are protected – get the right travel advice, vaccines and malarial tablets before you travel!
Getting to grips with Zika virus
A recording of this session is now available
NaTHNaC
Children
Careful pre-trip preparation can reduce the travel-associated health risks to children and infants
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Based on a further benefit-risk assessment for travellers, the UK marketing authorisation has been revoked by MHRA
Natural hazards and health risks
Advice for travellers visiting areas affected by natural hazards
Help us to adapt a Travel Health Resource for UK Travellers
Take part in a study that aims to help UK travellers make informed choices about Japanese encephalitis (JE) vaccination
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
Dengue in Peru
As of 17 October 2026, a total of 76,784 dengue cases (59,728 confirmed) and 81 deaths have now been reported in Peru during 2026. Serotypes DENV-1, DENV-2 and DENV-3 have been identified. Please see our Topics in Brief article for further details on dengue.
As of 28 June 2026, 34,820 cases (36 deaths) of dengue have been reported in Peru since the start of the year. A total of 39,211 cases (56 deaths) were reported during the whole of 2025. Serotypes DENV-1, DENV-2 and DENV-3 have been recorded. Please see our Topics in Brief article for further details on dengue.
Source: PAHOAs of 1 Feburary 2026, 4,344 cases (three deaths) of dengue have been reported in Peru since the start of the year. Case numbers usually increase during the first few months of the year. A total of 37,041 cases (56 deaths) were reported during 2025. Serotypes DENV-1, DENV-2 and DENV-3 were reported. Please see our Topics in Brief article for further details on dengue.
Source: PAHOAs of 6 September 2025, a total of 34,990 cases of dengue have been reported since the start of the year. Serotypes DENV1, DENV2 and DENV3 have been recorded in Peru during 2025. Please see our Topics in Brief article for further details on dengue.
Source: PAHOPeru reported 173,706 cases between 1 January 2024 and 26 April 2024, representing an increase of 357% compared to the same period in 2023. The cumulative incidence rate as of 26 April 2024 is 521 cases per 100,000 population.
Source: PAHOAs of 26 June 2023, a total of 172,533 dengue cases, with 228 deaths, have now been reported for 2023. A further 74 deaths are under investigation.
Source: StateFollowing countrywide floods in Peru, the country is experiencing a major dengue outbreak. As of 13 June 2023, a total of 110,000 cases, with more than 176 deaths, have been reported for 2023 (compared to 63,100 cases in 2022). A health emergency has been declared in 222 districts and the government is mobilising resources to scale up health services to assist medical centres coping with large number of daily cases.
Source: ERCCDengue in Colombia
As of 17 October 2026, a total of 91,419 dengue cases (64, 333 confirmed) and 69 deaths have now been reported in Columbia during 2026. Serotypes DENV-1, DENV-2, DENV-3 and DENV-4 have been identified. Please see our Topics in Brief article for further details on dengue.
As of 25 January 2026, 9,383 suspected cases (two deaths) of dengue have been reported in Colombia since the start of the year. Case numbers usually increase during the first few months of the year. A total of 125,119 cases (124 deaths) were reported during 2025. Serotypes DENV-1, DENV-2, DENV-3 and DENV-4 were all reported. Please see our Topics in Brief article for further details on dengue.
Source: PAHOAs of 6 September 2025, a total of 101,523 dengue cases have been reported in Colombia for 2025. Please see our Topics in Brief article for further details on dengue.
Source: PAHOAs of 10 July 2025, a total of 83,083 confirmed dengue cases have been reported in Colombia for 2025. Please see our Topics in Brief article for further details on dengue.
Source: PAHOAs of 10 August 2024, a total of 243,146 cases of dengue have been reported since the beginning of the year. This represents a significant increase in the reporting of dengue cases compared to the last few years. All four dengue serogroups (DENV1-4) are in circulation.
Source: StateColombia reported 112,140 cases of dengue between 1 January 2024 and 26 April 2024, representing an increase of 373% compared to the same period in 2023. The cumulative incidence rate as of 26 April 2024 is 219 cases per 100,000 population.
Source: PAHOYellow fever in Ghana
As of 19 October 2026, a total of 121 yellow fever cases (19 confirmed), with three deaths, have now been reported in the Upper West Region of Ghana. The outbreak response, including an emergency vaccination campaign, continues. Please see our Topics in Brief article for further details on yellow fever.
As of 11 October 2026, 43 suspected cases (including three confirmed deaths) of yellow fever have been reported in the Upper West Region. Case numbers appear to peak in mid September. Monitoring in the region continues. Please see our Topics in Brief article for further details on yellow fever.
Source: WHOAs 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.
Source: StateBatha
N'Djamena
Ouaddaï
Sila
Wadi Fira
Dengue in Chad
As of 21 October 2026, a total of 4,004 suspected dengue cases (including 311 confirmed and 11 deaths) have been reported in Chad during 2026. Six provinces have been affected: Ennedi Ouest, Batha, N'Djamena, Ouaddaï, Sila and Wadi Fira. Please see our Topics in Brief article for further details on dengue.
North Kivu
South Kivu
Bas-Uele
Tshopo
Haut-Uele
Sud-Ubangi
Nord-Ubangi
Ebola disease in DRC
As of 25 October 2026, a total of 10,060 confirmed Ebola disease (Bundibugyo virus) cases and 4,887 deaths have been reported in The Democratic Republic of Congo. Eight provinces have reported cases: Ituri, North Kivu, South Kivu, Tshopo, Haut-Uele, Bas-Uele, South Ubangi and North Ubangi. Please see our Topics in Brief article for further details on Ebola disease.
As of 16 October 2026, a total of 9,415 confirmed Ebola disease (Bundibugyo virus) cases and 4,536 deaths have been reported in Democratic Republic of Congo in eight provinces: Ituri, North Kivu, South Kivu, Tshopo, Haut-Uele, Bas-Uele, South Ubangi and North Ubangi. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 10 October 2026, a total of 8,978 confirmed Ebola disease (Bundibugyo virus) cases and 4,336 deaths have been reported in the Democratic Republic of the Congo, 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.
Source: StateAs of 4 October 2026, 8,603 confirmed Ebola disease (Bundibugyo virus) cases and 4,148 deaths have been reported in the Democratic Republic of the Congo, 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.
Source: StateAs 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.
Source: StateAs of 21 September 2026, 7,773 confirmed Ebola disease (Bundibugyo virus) cases and 3,759 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.
Source: StateAs of 6 September 2026, a total of 7,200 confirmed Ebola disease (Bundibugyo virus) cases and 3,475 confirmed deaths have now been reported across seven provinces in the Democratic Republic of the Congo: 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.
Source: StateAs of 6 September 2026, a total of 6,686 confirmed Ebola disease (Bundibugyo virus) cases and 3,226 confirmed deaths have now been reported across six provinces in the Democratic Republic of the Congo: Ituri, North Kivu, South Kivu, Tshopo, Haut-Uele and Bas-Uele. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 30 August 2026, a total of 6,100 confirmed cases and 2,950 deatha of Ebola disease (Bundibugyo virus) have been reported in six provinces in Democratic Republic of the Congo; Ituri, North Kivu, South Kivu, Tshopo, Haut-Uele and Bas-Uele. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 22 August 2026, a total of 5,514 confirmed cases and 2,642 deatha of Ebola disease (Bundibugyo virus) have been reported in six provinces in Democratic Republic of the Congo; Ituri, North Kivu, South Kivu, Tshopo, Haut-Uele and Bas-Uele. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 19 August 2026, a total of 5,290 confirmed Ebola disease (Bundibugyo virus) cases, and 2,516 deaths, have now been reported across six provinces: Ituri, North Kivu, South Kivu, Tshopo, Haut-Uele and Bas-Uele. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 14 August 2026, a total of 4,665 confirmed Ebola disease (Bundibugyo virus) cases, and 2,184 deaths, have now been reported across six provinces: Ituri, North Kivu, South Kivu, Tshopo, Haut-Uele and Bas-Uele. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 8 August 2026, a total of 4,294 confirmed Ebola disease (Bundibugyo virus) cases, and 1,960 deaths, have now been reported across five provinces: Ituri, North Kivu, South Kivu, Tshopo and Haut-Uele. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 2 August 2026, a total of 3,802 confirmed Ebola disease (Bundibugyo virus) cases, and 1,707 confirmed deaths, have now been reported across five provinces: Ituri, North Kivu, South Kivu, Tshopo and Haut-Uele. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 28 July 2026, 3,442 confirmed Ebola cases and 1,521 deaths have been reported in five provinces: Ituri, North Kivu, South Kivu, Tshopo and Haut-Uele. Please see our Topics in Brief article on Ebola for further details.
Source: StateAs of 26 July 2026, a total of 3,262 confirmed Ebola cases and 1,437 deaths have been reported in five provinces: Ituri, North Kivu, South Kivu, Tshopo and Haut-Uele. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 21 July 2026, a total of 2536 confirmed Ebola disease (Bundibugyo virus) cases, and 1033 confirmed deaths, have now been reported in five provinces: Ituri, North Kivu, South Kivu, Tshopo and Haut-Uele. Please see our Topics in Brief article for further details on Ebola disease.
Source: Democratic Republic of the Congo Ministry of HealthAs of 19 July 2026, a total of 2,423 confirmed Ebola disease (Bundibugyo virus) cases and 967 confirmed deaths, have now been reported in five provinces: Ituri, North Kivu, South Kivu, Tshopo and Haut-Uele. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 14 July 2026, a total of 2,073 confirmed Ebola disease (Bundibugyo virus) cases and 796 confirmed deaths, have now been reported in five provinces: Ituri, North Kivu, South Kivu, Tshopo and Haut-Uele. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 12 July 2026, a total of 1,963 confirmed Ebola disease (Bundibugyo virus) cases and 719 confirmed deaths, have now been reported in five provinces: Ituri, North Kivu, South Kivu, Tshopo and Haut-Uele. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 7 July 2026, the Democratic Republic of the Congo's Ministry of Health (MoH) reported 1,759 confirmed Ebola disease cases (600 deaths) caused by Bundibugyo virus, in the ongoing outbreak. Ituri, North-Kivu and South-Kivu provinces have been affected. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 4 July 2026, the Democratic Republic of the Congo's Ministry of Health (MoH) reported 1,561 confirmed Ebola disease cases (506 deaths) caused by Bundibugyo virus, in the ongoing outbreak. Ituri, North-Kivu and South-Kivu provinces have been affected. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 1 July 2026, 1,460 confirmed cases of Ebola disease with 447 deaths have been reported in the Democratic Republic of the Congo. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 29 June 2026, 1,333 confirmed cases and 399 deaths caused by Bundibugyo virus have been reported in Democratic Republic of the Congo. Confirmed cases have been reported in the provinces of Ituri, North Kivu and South Kivu. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 27 June 2026, the Democratic Republic of the Congo's Ministry of Health (MoH) reports 1,274 confirmed cases (360 deaths) caused by Bundibugyo virus, in the ongoing Ebola disease outbreak. Ituri, North-Kivu and South-Kivu provinces have been affected. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 24 June 2026, 1,155 confirmed cases and 304 deaths have been reported from the Democratic Republic of the Congo. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 22 June 2026, the Democratic Republic of the Congo's Ministry of Health (MoH) reports 1,094 confirmed cases (277 deaths) caused by Bundibugyo virus, in the ongoing Ebola disease outbreak. Ituri, North-Kivu and South-Kivu provinces have been affected. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 20 June 2026, 1,003 confirned cases of Ebola disease with 254 deaths have been reported in the Democratic Republic of the Congo. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 17 June 2026, a total of 896 confirmed Ebola disease cases, with 232 confirmed deaths, have been reported in the Democratic Republic of the Congo for 2026. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 15 June 2026, 837 confirmed cases of Ebola disease, with 196 deaths have been reported in the Democratic Republic of the Congo. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 13 June 2026, a total of 782 confirmed Ebola disease cases, with 181 deaths, have been reported in the Democratic Republic of the Congo for 2026. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 10 June 2026, 676 confirmed cases of Ebola disease and 136 deaths have been reported in Democratic Republic of the Congo. Confirmed cases have been reported in Ituri (629 cases), North Kivu (44 cases), and South Kivu (three cases). Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 8 June 2026, 598 confirmed cases of Ebola disease and 115 deaths have been reported in Democratic Republic of the Congo. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 7 June 2026, 544 confirmed cases of Ebola disease and 88 confirmed deaths have been reported in the Democratic Republic of the Congo. The confirmed cases include 29 healthcare workers, five of whom died. Please see our Topics in Brief article for further details on Ebola disease.
Source: Africa CDCAs of 3 June 2026, 381 confirmed cases of Ebola disease and 64 deaths have been reported from the Democratic Republic of the Congo. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 1 June 2026, the Democratic Republic of the Congo's Ministry of Health (MoH) reports 344 confirmed Bundibugyo virus cases, with 60 confirmed deaths, and 116 suspected cases, as part of the ongoing Ebola outbreak. The number of suspected cases has been revised following the removal of confirmed and negative cases. According to the MoH, 23 new confirmed cases were reported on 1 June 2026. The provinces of Ituri, North-Kivu and South-Kivu have been affected. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 1 June 2026, the Democratic Republic of the Congo's Ministry of Health reported a total of 321 confirmed Ebola disease cases and 48 confirmed deaths, with 220 suspected cases, as part of the ongoing Ebola outbreak. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 27 May 2026, 125 confirmed and 906 suspected cases of Ebola disease, with 17 confirmed and 223 suspected deaths have been reported from the Democratic Republic of the Congo. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 24 May 2026, a total of 101 confirmed and over 900 suspected Ebola disease cases, with ten confirmed and 220 suspected deaths, have now been reported from the Democratic Republic of the Congo. Please see our Topics in Brief article for further details on Ebola disease.
Source: WHOAs of 22 May 2026, a total of 82 confirmed and 750 suspected Ebola disease cases, with seven confirmed and 177 suspected deaths, have now been reported in the Democratic Republic of the Congo. Please see our Topics in Brief article for further details on Ebola disease.
Source: WHOOn 20 May 2026, the World Health Organization reported 51 confirmed cases, 600 suspected (139 suspected deaths) of Ebola disease caused by the Bundibugyo virus. Deaths have been reported in healthcare workers, indicating healthcare associated transmission. Please see our Topics in Brief article for further details on Ebola disease.
Source: WHOAs of 19 May 2026, there are now 30 confirmed cases, more than 500 suspected cases, and 130 suspected deaths in the DRC, from the northeastern province of Ituri. An American national has also been confirmed positive and been transferred to Germany, as reported by the U.S. Please see our Topics in Brief article for further details on Ebola disease.
Source: WHOThe Director-General of the World Health Organization (WHO), has declared that the Ebola disease caused by Bundibugyo virus in the Democratic Republic of the Congo and Uganda constitutes a public health emergency of international concern (PHEIC). As of 16 May 2026, eight laboratory-confirmed cases, 246 suspected cases and 80 suspected deaths have been reported in Ituri Province of the Democratic Republic of the Congo across at least three health zones, including Bunia, Rwampara and Mongbwalu. Please see our Topics in Brief article for further details on Ebola disease.
Source: WHOAs of 15 May 2026, a total of 13 confirmed cases of Ebola disease and four deaths have been reported in DRC. Cases have primarily been reported in the Mongbwalu and Rwampara health zones, with additional suspected cases identified in Bunia. Please see our Topics in Brief article for further details on Ebola disease.
Source: Africa CDCMeasles in USA
As of 23 October 2026, 4,588 confirmed measles cases have been reported across 47 states/jurisdictions 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 (1,327), followed by South Carolina (670) and Utah (535). Please see our Topics in Brief article for further details on measles.
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.
Source: CDCAs of 23 July 2026, a total of 2,318 confirmed measles cases have been reported across 45 states of the United States in 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. Please see our Topics in Brief article for further details on measles.
Source: CDCLuapula
Lusaka
Northern
Southern
Central
Cholera in Zambia
As of 27 October 2026, a total of 1,548 cases (227 confirmed cases and 30 deaths) have been reported in Zambia since the cholera outbreak was declared on 28 July 2026. Cases have been reported across 18 districts in six provinces with the highest numbers reported in Lusaka and Chibombo districts. Please see our Topics in Brief article for further details on cholera.
As of 21 October 2026, a total of 1,207 cases (207 confirmed cases and 25 deaths) have been reported in Zambia since the cholera outbreak was declared on 28 July 2026. Cases have been reported across 16 districts in six provinces with the highest numbers reported in Lusaka (658 cases) and Chibombo (258 cases) districts. Please see our Topics in Brief article for further details on cholera.
Source: StateAs of 14 October 2026, a total of 909 cases, including 149 confirmed cases and 25 deaths, have been reported in Zambia since the cholera outbreak was declared on 28 July 2026. Cases have been reported across 12 districts in five provinces with the highest number of cases reported in Lusaka (457 cases) and Chibombo (221 cases) districts. Please see our Topics in Brief article for further details on cholera.
Source: StateOn 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 seven districts across five provinces. Please see our Topics in Brief article for further details on cholera.
Source: StateDengue in India
As of 19 October 2026, a total of a total of 70,140 dengue cases have been reported in India during 2026. Please see our Topics in Brief article for further details on dengue.
As of 13 July 2026, a total of 22,938 dengue cases have been reported in India during 2026. Please see our Topics in Brief article for further details on dengue.
Source: WHOYellow fever in Côte d'Ivoire
As of 14 October 2026, a total of 23 yellow fever cases, with 11 deaths, have now been reported in Côte d'Ivoire for 2026. An outbreak response, including an emergency vaccination campaign, is ongoing. Please see our Topics in Brief article for further details on yellow fever.
Between 1 January and 23 August 2026, a total of 14 yellow fever cases, with two deaths, have been reported in eight health districts of Côte d'Ivoire. Please see our Topics in Brief article for further details on yellow fever.
Source: WHOEbola disease in Kenya
As of 23 October 2026, a second Ebola disease (Bundibugyo virus) death has been reported in Kenya. This second fatal case was a direct close contact of the first case imported from the Democratic Republic of the Congo. All nine confirmed Ebola disease (Bundibugyo virus) cases in Kenya are linked to this index case and there is no evidence of community spread. Please see our Topics in Brief article for further details on Ebola disease.
As of 20 October 2026, nine cases of Ebola disease (Bundibugyo virus), including one death have been confirmed in Kenya. Cases have all been detected in one cluster with epidemiological links to the first confirmed case imported from the Democratic Republic of the Congo. There is no evidence of transmission outside of this group. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 18 October 2026, eight cases of Ebola disease (Bundibugyo virus), including three cases in healthcare workers, have been confirmed in Kenya. Please see our Topics in Brief article for further details on Ebola disease.
Source: StateAs of 15 October 2026, a second Ebola disease (Bundibugyo virus) case has been confirmed in Kenya, in a contact of the first case imported from the Democratic Republic of Congo. This second case remains in quarantine and is receiving treatment. Please see our Topics in Brief article for further details on Ebola disease.
Source: United NationsOn 6 October 2026, the first confirmed case of Ebola disease (Bundibugyo virus) was reported in Kenya, imported from the Democratic Republic of the Congo. Contact tracing is in process. Please see our Topics in Brief article for further details on Ebola disease.
Source: State



