News
Changes to the Country Information pages: dengue vaccine recommendations
NaTHNaC has reviewed and updated the dengue country-specific information and vaccine recommendations
Dengue 'green book' chapter published
A new dengue chapter in the 'green book' (Immunisation against infectious disease) has been published
Global dengue risk reminder
Dengue is a virus spread by mosquitoes found in tropical and sub-tropical regions worldwide, including parts of Europe
Qdenga® dengue vaccine guidance
Joint Committee on Vaccination and Immunisation (JCVI) deliberations on Qdenga® vaccine now available
Dengue: the Caribbean region
An increase in cases of dengue have been reported in the Caribbean region
Zoonoses (diseases from animals) in travellers
A zoonotic disease is one that spreads between animals and humans and has the potential to be an increasing problem for travellers
Factsheets
Dengue
Dengue is an infection caused by the dengue virus of which there are four different subtypes. The disease is transmitted by mosquitoes
Diseases spread by insects and ticks in the American continent (the Americas)
Depending on the destination, travellers may be at risk of a number of different diseases
Diseases spread by insects and ticks in Europe
Depending on destination, travellers may be at risk of a number of different diseases spread by insects or ticks in Europe
Topics
Dengue
Dengue is an infection caused by the dengue virus of which there are four different types (serogroups) and transmitted through the bite of an infected mosquito
Outbreaks
Dengue in Bangladesh
As of 22 September 2025, a total of 42,509 cases of dengue have been reported in Bangladesh. Please see our Topics in Brief article for further details on dengue.
Dengue in France
As of 10 September 2025, Sante Publique France reported a total of 21 locally acquired cases of dengue for 2025. Cases have been reported from Auvergne-Rhône-Alpes, Provence Alpes-Côte d'Azur, Nouvelle-Aquitaine and Occitanie. Please see our Topics in Brief article for further details on dengue.
Dengue in Samoa
As of 9 September 2025, a total of 12,025 clinically diagnosed dengue cases (including 3,630 laboratory confirmed cases), and six deaths, have been reported in Samoa since January 2025. Co-circulation of DENV-1 and DENV-2 serotypes have been identified. Please see our Topics in Brief article for further details on dengue.
Dengue in American Samoa
As of 2 September 2025, a total of 81 confirmed dengue cases have been reported in American Samoa since July 2025. Co-circulation of DENV-1 and DENV-2 serotypes have been identified. Please see our Topics in Brief article for further details on dengue.
Dengue in Tuvalu
As of 2 September 2025, a total of 131 confirmed dengue cases have been reported in Tuvalu since June 2025. DENV-2 serotype has been identified. Please see our Topics in Brief article for further details on dengue.
Dengue in French Polynesia
As of 2 September 2025, a total of 2,577 dengue cases (2,312 confirmed and 265 probable) have been reported in French Polynesia since November 2023. Please see our Topics in Brief article for further details on dengue.
Dengue in Kiribati
As of 2 September 2025, a total of 446 confirmed and 1,213 suspected dengue cases, with one confirmed death, have been reported in Kiribati since April 2025. Co-circulation of DENV-1 and DENV-2 serotypes have been identified. Please see our Topics in Brief article for further details on dengue.
Dengue in Cook Islands
As of 18 August 2025, a total of 93 confirmed cases of dengue cases have been reported on Rarotonga, Cook Islands, since February 2025. Of the 50 confirmed serotypes, 47 were DENV-1 and three were DENV-2. Please see our Topics in Brief article for further details on dengue.
Dengue in Nauru
As of 19 August 2025, a total of 379 confirmed dengue cases, with two deaths have been reported since 27 June 2025. Cases are widely distributed across the island, with most cases reported from Aiwo, Baitsi, Boe, Denigomodu and Meneng. Please see our Topics in Brief article for further details on dengue.
Dengue in Sudan
As of 10 August 2025, a total of 4,648 suspected cases of dengue and seven deaths have been reported from 10 out of 12 states in Sudan in 2025. Since the start of the outbreak in July 2024, a total of 13,331 suspected cases and 22 deaths have been reported. Please see our Topics in Brief article for further details on dengue.
Dengue in Italy
As of 5 August 2025, 111 confirmed cases of dengue (4 locally acquired) were reported. Two of the locally acquired cases have been identified in Emilia-Romagna and Veneto regions; further epidemiological investigations are in progress. Please see our Topics in Brief article for further details on dengue.
Dengue in Palau
On 3 July 2025, the Palau Ministry of Health & Human Services identified an imported case of dengue fever. This was the first laboratory-confirmed case of DENV-1 in Palau in over a decade. Since 24 July, five additional cases of dengue fever have been reported among local residents, none of whom have recent travel history. Please see our Topics in Brief article for further details on dengue.
Dengue in Fiji
As of 15 June 2025, the Ministry of Health and Medical Services has reported 10,969 cases of dengue nationally with 4,960 cases in the Western division, 2,868 cases in the Central, 2,867 cases in Northern and 274 cases in the Eastern division. Eight deaths have been confirmed as directly attributed to dengue fever. The outbreak is driven predominantly by DENV-2. Please see our Topics in Brief article for further details on dengue.
Dengue in Mali
Since the beginning of 2025, a total of 2,315 cases of dengue (478 confirmed) have been reported in Mali. There has been a 29 percent average increase in the number of new cases in the last four weeks. Since the start of the outbreak in September 2023, a total of 17,407 cases (2,086 confirmed) and 74 deaths have been reported. Please see our Topics in Brief article for further details on dengue.
Dengue in Brazil
As of 10 July 2025, a total of 3,009,352 confirmed dengue cases have been reported in Brazil 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.
Dengue in Mexico
As of 10 July 2025, a total of 49,085 confirmed dengue cases 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.
Dengue in Colombia
As 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.
Dengue in Comoros
As of 28 June 2025, a total of 1,283 dengue cases (412 confirmed) and one death have been reported from the Comoros islands. Ndzuwani has reported 975 cases, Ngazidja 269 cases and Mwali 30 cases. Please see our Topics in Brief article for further details on dengue.
Dengue in Tonga
Between 19 February and 26 May 2025, the Ministry of Health have reported 793 confirmed dengue cases. The serotype responsible for this current outbreak is dengue virus type 2 (DENV-2). Please see our Topics in Brief article for further details on dengue.
Dengue in Philippines
Between 1 January and 15 February 2025, a total of 43,732 dengue cases have been reported. This is a 56% increase compared to the same period in 2024. Three regions accounted for over half of cases reported: Calabarzon, the National Capital Region, and Central Luzon. Please see our Topics in Brief article for further details on dengue.
Dengue in Madeira
On 18 February 2025, the Regional Health Authority of Madeira confirmed two locally acquired dengue cases (symptom onset in January 2025) on the island of Madeira. No further suspected cases have been identified. The last outbreak of locally acquired dengue on Madeira was in 2012-2013. Please see our Topics in Brief article for further details on dengue.
Dengue in Puerto Rico
As of 20 February 2025, a total of 6,291 dengue cases were reported in Puerto Rico for 2024. Cases remained above epidemic threshold in 2024, with active transmission also remaining above epidemic threshold through January 2025. DENV-1, DENV-2 and DENV-3 subtypes were identified; with DENV-3 the predominant circulating subtype, followed by DENV-1. Please see our Topics in Brief article for further details on dengue.
Dengue in Cape Verde
As of 16 December 2024, a total of 43,597 dengue cases (eight deaths) have been reported since the start of 2024. DENV-1 and DENV-3 viruses have been detected. Cases have been from all islands but Santiago Island has been most severely affected with 82% of recorded cases. Please see our Topics in Brief article for further details on dengue.
Dengue in USA
As of 14 December 2024, a total of 79 cases of locally acquired dengue have been reported in Florida across ten counties during 2024. DENV-1, DENV-3 and DENV-4 subtypes have been identified. Please see our Topics in Brief article for further details on dengue.
Dengue in USA
On 25 November 2024, the first locally acquired case of dengue in Texas for 2024 was reported. As of 25 November 2024, 106 travel associated cases and one death were reported in Texas. This is the highest annual case count in Texas since 2002. Please see our Topics in Brief article for further details on dengue.
Dengue in Guadeloupe
As of 14 November 2024, the French department of Guadeloupe health authorities declared a dengue epidemic on the island. As of 27 October 2024, the Pan American Health Organization (PAHO) reported 7,265 cases during 2024 with DENV-2 and DENV-3 circulating. Please see our Topics in Brief article for further details on dengue.
Dengue in Burkina Faso
As of 15 November 2024, a total of 89,728 dengue cases (91 deaths) have been reported in all 13 regions during 2024. The Center region has reported 51% of cases. DENV-1 and DENV-3 viruses have been identified. Please see our Topics in Brief article for further details on dengue.
Dengue in USA
As of 10 November 2024, 12 locally acquired cases of dengue have been reported in California during 2024. Cases have been reported from Los Angeles County, San Diego County and most recently in San Bernardino County. Please see our Topics in Brief article for further details on dengue.
Auvergne-Rhône Alpes
Provence Alpes-Côte d’Azur
Dengue in France
As of 6 November 2024, a total of 85 confirmed locally acquired dengue cases have been reported in mainland France in 2024. The majority of cases have been reported from Provence-Alpes-Cote d'Azur. Please see our Topics in Brief article for further details on dengue.
Dengue in Afghanistan
Since the beginning of 2024, a total of 2,749 suspected cases of dengue and one associated death have been reported.
Dengue in Nepal
As of 15 October 2024, a total of 19,599 dengue cases, with nine verified deaths, have been reported in Nepal since the start of 2024. Across the country 76 districts are reporting cases; Kathmandu is the most affected district, with 3,103 dengue cases.
Dengue in Costa Rica
As of 7 October 2024, a total of 22,575 dengue cases have been reported in 2024. This is an increase of 141% compared to the same period in 2023.
Dengue in French Guiana
As of 7 October 2024, a total of 16,141 suspected dengue cases have been reported, with eight deaths, since the start of 2024. This is an increase of 720% compared to the same period in 2023.
Dengue in Guyana
As of 7 October 2024, a total of 31,238 suspected dengue cases (including 900 severe dengue cases) with five deaths, have been reported in 2024. This is an increase of 90% compared to the same period in 2023.
Dengue in Panama
As of 7 October 2024, a total of 25,092 dengue cases (including 149 severe dengue cases) and 39 deaths have been reported in 2024. This is an increase of 177% compared to the same period in 2023.
Dengue in Spain
On 9 September 2024, the Catalonian Public Health Agency reported the detection of five non-travel-associated dengue cases in Tarragona province. These are the first autochthonous dengue cases detected in Spain in 2024.
Dengue in Honduras
As of 24 August 2024, a total of 123,267 dengue cases, with 52 deaths, have been reported in 2024. DENV-1, DENV-2 , DENV-3 and DENV-4 have all been identified in the country.
Kerala
Dengue in India
As of 1 September 2024, a total of 23,733 dengue cases have been reported in Karnataka, with a total of 15,056 dengue cases reported in Kerala, since the beginning of 2024.
Dengue in Guatemala
As of 15 August 2024, a total of 80,234 dengue cases, with 100 deaths have now been reported for 2024. The predominant dengue serotype is DEN-3, accounting for 83% of positive cases. However, the circulation of all four serotypes have been identified.
Dengue in Thailand
As of 4 July, a total of 36,246 dengue fever cases, including 37 deaths, have been reported in 2024.
Dengue in Mali
As of 12 July 2024, 5,142 cases (631 confirmed; 4,51 suspected) and six deaths of dengue fever have been reported from ten of the eleven regions in Mali. Two serotypes (DENV-1 and DENV-3) were detected among confirmed cases.
Dengue in Togo
As of 28 June 2024, Togo has recorded 197 dengue fever cases since May 7, 2024. The cases were mainly reported in the Lomé health district. This is the first reported dengue fever outbreak in Togo.
Dengue in UAE
During 2023, locally acquired cases of dengue were confirmed within the United Arab Emirates.
Dengue in Dominican Republic
As of 16 June 2024, 8,790 dengue cases (no deaths) have been reported in 2024, an increase of 442% compared to the same period in 2023.
Dengue in Italy ex Egypt
As of 10 June 2024, a total of three imported dengue cases have been reported in Italy, with the serotype confirmed as DENV-2 in all three cases. The travellers visited the resort of Sharm El-Sheik for a short holiday in May 2024.
Warraber Island
Dengue in Australia
On 11 June 2024, the Queensland Health Department reported at least 39 suspected dengue cases (8 confirmed) in the Torres and Cape region. The serotype is reported to be DENV-3 in at least five of the confirmed cases.
Dengue in Argentina
As of 18 May 2024, a total of 675,806 dengue cases have been reported in 2024. Of the three circulating dengue virus serotypes identified DENV-2 and DENV-1 account for more than 99.9% of cases with a few cases of DENV-3 also detected.
Dengue in Mauritius
As of 28 April 2024, a total of 7,177 dengue cases and 15 deaths have been reported since the initial outbreak started in December 2023. Currently only DENV-2 serotype has been identified.
Dengue in Ecuador
Ecuador reported 23,234 cases of dengue between 1 January 2024 and 26 April 2024, representing an increase of 371% compared to the same period in 2023. The cumulative incidence rate as of 26 April 2024 is 130 cases per 100,000 population.
Dengue in Paraguay
Paraguay reported 246,509 cases of dengue between 1 January 2024 and 26 April 2024, representing an increase of more than 1,800% compared to the same period in 2023. The cumulative incidence rate as of 26 April 2024 is 3,263 cases per 100,000 population.
Dengue in Peru
Peru 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.
