Dengue Fever
10 Épidémie ActivesDengue is a mosquito-borne viral infection that causes flu-like illness and can develop into severe dengue, a potentially lethal complication. It is endemic in more than 100 countries, primarily in tropical and subtropical regions.
Qu'est-ce que Dengue Fever?
Dengue fever is one of the fastest-growing mosquito-borne diseases globally. Approximately half of the world's population is now at risk, with an estimated 390 million infections occurring each year. Climate change is expanding the range of Aedes mosquitoes that transmit the disease, bringing dengue to new regions.
SymptĂ´mes
- High fever (104°F/40°C)
- Severe headache
- Pain behind the eyes
- Severe joint and muscle pain (breakbone fever)
- Rash (appears 2-5 days after fever)
- Nausea and vomiting
- Mild bleeding (nose, gums)
Transmission
Dengue is transmitted through bites from infected Aedes aegypti and Aedes albopictus mosquitoes. These mosquitoes become infected when they bite a person with dengue virus in their blood. The virus cannot spread directly between people.
Période de Contagiosité : Not contagious person-to-person; infectious to mosquitoes from 1 day before fever onset through 5-7 days of illness
Prévention
- Use mosquito repellent containing DEET, picaridin, or IR3535
- Wear long-sleeved shirts and long pants
- Use air conditioning or window/door screens
- Remove standing water where mosquitoes breed
- Use mosquito nets, especially during the day
- Consider dengue vaccine if you live in endemic areas (consult healthcare provider)
- Treat clothing and gear with permethrin
Live Dengue Fever Global Case Map
10 countries with reported activity. Updated from real-time surveillance data.
Épidémies Actives et Cas Récents
Renseignements en temps réel issus de la surveillance sanitaire mondiale et de la surveillance par IA
Sources de données : BEACON, ProMED, OMS, CDC et plus de 50 agences nationales de santé
✓ Données en direct mises à jour en temps réel depuis les sources de santé mondiales
Dengue, Colombia
In 2025, Colombia reported 123 745 dengue cases and 118 confirmed deaths, corresponding to a national case fatality rate of 0.09% and an incidence of 370.7 cases per 100 000 inhabitants, substantially lower than in 2024 but still above historical baseline levels. Most cases were non-severe, yet 38% presented with warning signs or severe dengue, with the highest incidence observed among children and adolescents under 17 years, placing pressure on pediatric health services. Dengue transmission showed strong geographic clustering, with 57.4% of cases concentrated in a small number of departments, and a late-year increase in cases signaled continued transmission risk entering 2026.
Source: BEACON - View Full Report
Dengue Outbreak: Taiwan's First 2026 Case Confirmed in Kaohsiung
Autochthonous transmission of dengue (type 2) has been reported in Taiwan, with 4 cases in Kaohsiung City. Increased mosquito activity related to rain, especially following typhoons, is thought to be increasing risk of transmission.
Source: BEACON - View Full Report
Dengue, Vanuatu
This event envelope contains reports on Dengue in Vanuatu.
Source: BEACON - View Full Report
Dengue, Viet Nam
This event envelope contains reports on Dengue in Viet Nam.
Source: BEACON - View Full Report
Dengue, Mexico
Through epidemiological week 21 (data as of 01 Jun 2026), Mexico has recorded 2286 confirmed dengue cases, 23 718 probable cases, and 4 confirmed deaths nationally—a markedly quiet year, with confirmed cases down roughly 38% and deaths down about 78% compared with the same period in 2025 (3692 cases, 18 deaths), and far below the 2024 epidemic.
Source: BEACON - View Full Report
Dengue, Brazil
This event envelope contains reports on dengue in Brazil.
Source: BEACON - View Full Report
Dengue, Yemen
This event envelope contains reports on dengue in Yemen.
Source: BEACON - View Full Report
Dengue, Georgia
Georgia has reported up to eight imported dengue cases annually, with no evidence of autochthonous (locally acquired) transmission.
Source: BEACON - View Full Report
Dengue, Malaysia
This event envelope contains reports on Dengue in Malaysia.
Source: BEACON - View Full Report
Dengue Cases Surge in Honduras Before Rainy Season
Honduras is experiencing a moderate dengue season in 2026, with case counts about half those recorded at the same point in 2025, consistent with the post-epidemic trough following the severe 2024 outbreak. Ongoing circulation of DENV-3 and the concentration of cases in densely populated urban departments sustain the risk of severe disease, particularly among children, as the country enters its higher-transmission rainy season from May to November.
Source: BEACON - View Full Report
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Ressources Expertes et Références
Informations fiables provenant des principales organisations de santé
CDC
Directives officielles des Centers for Disease Control and Prevention des États-Unis
Voir les Ressources du CDC →WHO
Surveillance mondiale des maladies et directives de l'Organisation Mondiale de la Santé
Voir les Ressources de l'OMS →Contenu Révisé Médicalement
Les informations sur les maladies sur Virus Watcher sont révisées par notre Épidémiologiste en Chef, ancien analyste principal du CDC pour les prévisions FluSight. Les données épidémiques sont agrégées à partir de sources vérifiées notamment BEACON, ProMED, OMS, CDC et plus de 50 agences nationales de santé. Ces informations sont à des fins éducatives et ne doivent pas remplacer les conseils médicaux professionnels.
Dernière révision : 2026-06-29
Questions Fréquemment Posées
Questions fréquentes sur Dengue Fever répondues par notre équipe d'épidémiologie
Maladies Associées
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