Brazil dengue & chikungunya control, mixed 2026 trends

Claims

What the coverage asserts, and how many sources carry each claim.

• [● 3 SOURCES] Campo Grande started a week‑long mobilization against Aedes aegypti on Monday, March 3.
• [● 3 SOURCES] The campaign will involve visiting more than 17,000 homes by Saturday, March 8.
• [● 3 SOURCES] Agents will perform environmental management, insecticide spraying (fumacê), educational activities, and use the LIRAa tool.
• [● 3 SOURCES] Up to epidemiological week 29 of 2026, Campo Grande recorded 1,364 dengue notifications with no severe cases or deaths.
• [● 3 SOURCES] During the same period, one Zika case and 37 chikungunya cases were confirmed, also with no deaths.
• [● 3 SOURCES] Rubens Bitancourt, manager of vector disease control at Sesau, said LIRAa helps identify high‑infestation areas.
• [● 3 SOURCES] Fernanda Veríssimo, an endemic agent, highlighted health education as a key component of the campaign.
• [● 3 SOURCES] The LIRAa tool provides rapid index surveys to target mosquito control interventions.
• [● 2 SOURCES] Acre reported 1,838 probable dengue cases in 2026, of which 1,115 were confirmed and zero deaths.
• [○ 1 SOURCE] Acre confirmed 13 meningitis cases in 2026, a 35% decline from 2025, with one death.
• [○ 1 SOURCE] Divinópolis recorded 2,076 confirmed dengue cases in 2026, four deaths and one death under investigation.
• [○ 1 SOURCE] Amazonas recorded 22,897 malaria cases Jan‑Jun 2026, a 17.9% drop from 2025, with 44.12% of cases in indigenous areas.

Timeline

1. 4 days ago

   [HEALTH] 4 sources

   Dengue epidemic affects 19 municipalities in São Paulo

   Nineteen municipalities in São Paulo's northwest region are facing dengue epidemics, with high incidence rates in Araçatuba, Presidente Prudente, and São José do Rio Preto despite a state-wide decline in cases.

2. 10 days ago

   [HEALTH] 3 sources

   Brazilian municipalities intensify dengue and arbovirus control measures

   Brazilian cities Votuporanga and Ilhéus are ramping up dengue and chikungunya control efforts through insecticide spraying and mosquito breeding site elimination.

3. 19 days ago

   [HEALTH] 2 sources

   Sorriso reports dengue and chikungunya cases amid mosquito surveillance

   Sorriso, Brazil, reports 64 dengue and 25 chikungunya cases this year, with surveillance identifying high-risk neighborhoods and a 43% positive rate for Aedes aegypti mosquito eggs in recent trap samples.

4. about 1 month ago

   [HEALTH] 16 sources

   Brazil municipalities intensify dengue control and vaccination campaigns

   Brazilian municipalities are ramping up health measures, including dengue mosquito control in Campinas and Cuiabá, and expanding influenza vaccination access in Cuiabá, Rondonópolis, and Primavera do Leste.

5. about 1 month ago

   [HEALTH] 3 sources

   Dourados authorities launch preventive measures against Chikungunya

   Health authorities in Dourados, Brazil, are implementing cleaning and chemical control measures to combat Chikungunya, while new technologies like drones aim to optimize dengue prevention efforts.

6. about 1 month ago

   [HEALTH] 6 sources

   Campo Grande launches citywide dengue control campaign, inspecting 17,000 homes

   Campo Grande began a week‑long dengue fight on March 3, sending agents to over 17,000 homes, using LIRAa surveys, insecticide spraying and education; 1,364 dengue cases reported with no deaths.

7. about 2 months ago

   [HEALTH] 12 sources

   Brazil reports mixed 2026 trends in dengue, malaria and other diseases

   Brazil's 2026 disease surveillance shows a meningitis decline in Acre, rising dengue in several states, a malaria drop in Amazonas, record chikungunya deaths in Mato Grosso do Sul, and heightened hepatitis and‑

8. about 2 months ago

   [HEALTH] 19 sources

   Nova Iguaçu expands dengue control with motorcycle‑mounted fogger

   Nova Iguaçu deployed a motorcycle‑mounted fogger on July 15, 2026 to spray insecticide in hard‑to‑reach areas, boosting its ongoing dengue‑control program.

9. 2 months ago

   [HEALTH] 7 sources

   Brazilian cities intensify mosquito control to curb dengue and chikungunya

   Brazilian cities ramp up mosquito control: Nova Iguaçu uses motofog, Rio de Janeiro inspects 16 neighborhoods, Varginha educates on tick disease, Campo Grande fumigates three districts, and Dourados sees a drop

10. 2 months ago

    [HEALTH] 3 sources

    Dengue cases rise sharply in Brazil's Ceará and Acre states

    Brazil's Ceará logged over 6,100 dengue cases and Acre confirmed 993 cases, 15 severe and two deaths under investigation, leading to heightened prevention and monitoring.

11. 2 months ago

    [HEALTH] 7 sources

    Campo Grande launches fogging operation in four neighborhoods to curb Aedes mosquitoes

    Campo Grande will fog four neighborhoods on 10 May to fight Aedes mosquitoes, while health officials hold a training workshop to prepare for summer dengue and chikungunya transmission.

12. 2 months ago

    [HEALTH] 4 sources

    Brazil records dengue surge with deaths across Paraíba, Acre and Mato Grosso in early 2026

    Brazil's Paraíba saw over 4,400 arbovirus cases and six dengue deaths, Acre reports two suspected dengue deaths, and Cuiabá logged 568 dengue cases with one death in early 2026.

13. 2 months ago

    [HEALTH] 2 sources

    Itajaí and Tubarão in Brazil roll out new dengue‑prevention programs

    Itajaí begins Wolbachia mosquito releases and Tubarão applies long‑lasting insecticide as Brazil steps up dengue prevention.

14. 2 months ago

    [HEALTH] 16 sources

    Campo Grande Holds Second Arboviruses Workshop to Strengthen Dengue, Chikungunya and Zika Response

    Campo Grande’s July 7 health workshop trained staff on dengue, chikungunya and Zika, featuring Fiocruz and Ministry experts to boost surveillance and vector control before the summer peak.

15. 2 months ago

    [HEALTH] 2 sources

    Brazil Health Ministry probes safety of Butantan dengue vaccine

    Brazil's health ministry and Anvisa are investigating 42 severe reactions to the Butantan-DV dengue vaccine, suspended since June 8, to decide if it can resume with possible restrictions, while Qdenga remains a

16. 2 months ago

    [HEALTH] 4 sources

    Brazilian municipalities intensify dengue mosquito control measures

    Health agencies in Brazil’s Federal District, Guarulhos and Cuiabá expanded mosquito‑control operations, inspecting homes, applying larvicides and promoting vaccination as dengue cases fall.

17. 2 months ago

    [HEALTH] 3 sources

    Dourados reports 17 chikungunya deaths, launches flu vaccination day

    Dourados, Brazil, records 17 chikungunya deaths amid ongoing infections and hosts a free flu vaccination day to boost community immunisation.

18. 3 months ago

    [HEALTH] 5 sources

    Brazil records dengue deaths in Paraíba while chikungunya cases drop in Dourados

    Brazil reports dengue deaths in Paraíba, a sharp decline in chikungunya cases in Dourados, and low arbovirus numbers in Sorriso, urging continued mosquito‑control measures.

19. 3 months ago

    [HEALTH] 2 sources

    Marília municipality resumes dengue‑prevention actions in north district

    Marília resumed dengue‑prevention work in its north zone, deploying 25 agents to eliminate mosquito breeding sites after a rain delay; 79 cases remain non‑severe.

20. 3 months ago

    [HEALTH] 2 sources

    Brazilian cities São José and Anápolis begin Wolbachia mosquito releases to curb dengue

    São José and Anápolis in Brazil are rolling out the Wolbachia mosquito technique, targeting over half a million residents to reduce dengue, Zika and chikungunya transmission.

21. 3 months ago

    [HEALTH] 3 sources

    Brazil Deploys Drones to Map and Treat Dengue Breeding Sites in Federal District

    Drones equipped with AI mapping and larvicide drops are being used across Brazil's Federal District to locate and treat dengue mosquito breeding sites, targeting over 18,000 areas in the coming year.

22. 3 months ago

    [HEALTH] 2 sources

    Brazil resumes dengue vaccine campaign in João Pessoa as Minas reports no severe side effects

    Brazil’s João Pessoa restarts dengue vaccination after a holiday break, while Minas Gerais reports no serious side effects from the suspended Butantan vaccine, as authorities investigate nationwide cases.

23. 3 months ago

    [HEALTH] 4 sources

    Brazilian cities deploy drones and cleaning projects to boost public health and infrastructure

    Brazilian municipalities launch drone‑based dengue control in the Federal District and intensive cleaning, road and safety upgrades in Várzea Grande and Varginha.

24. 3 months ago

    [HEALTH] 2 sources

    Dengue Cases Rise in Philippines While Declining in Brazil in 2026

    Dengue cases rose 50 % in Benguet, Philippines (54 cases, no deaths) while falling 99 % in Sorocaba, Brazil (62 cases, no deaths) in early 2026, reflecting differing local control efforts.

25. 3 months ago

    [HEALTH] 3 sources

    Brazil's Federal District health officials warn of dengue surge as atypical rains hit

    Brazil's Federal District health agency warns that atypical rains may trigger a dengue rise, urging weekly inspections, container removal, and continued community campaigns.

26. 3 months ago

    [HEALTH] 4 sources

    Cuiabá and Dourados intensify mosquito control, reducing dengue and chikungunya cases

    Cuiabá’s health teams inspected over half a million homes, cutting dengue and chikungunya cases, while Dourados maintains larvicide stations and inspects properties to fight Aedes aegypti.

27. 3 months ago

    [HEALTH] 3 sources

    Dourados extends health emergency amid chikungunya outbreak

    Dourados, Brazil, extended its health emergency for 90 days as chikungunya continues, with 5,200+ cases, 14 deaths and 20 hospitalizations.

28. 3 months ago

    [HEALTH] 3 sources

    Brazilian cities intensify fumacê spraying to curb dengue

    Campo Grande and Paraíso do Tocantins in Brazil deployed intensive fumacê ULV spraying across multiple neighborhoods to reduce adult Aedes aegypti and curb dengue, zika and chikungunya, urging residents to keep

29. 3 months ago

    [HEALTH] 2 sources

    Minas Gerais government begins Wolbachia mosquito releases in Mario Campos, Brazil

    The Minas Gerais government launched Wolbachia‑infected mosquito releases in Mario Campos on 10 June to reduce dengue, Zika and chikungunya, expanding a health project covering 22 municipalities and funded by

30. 3 months ago

    [HEALTH] 3 sources

    Brazilian municipalities expand school environmental education and vector‑control campaigns

    Ribeirão Pires held an environmental‑education event for 353 pupils, while Belford Roxo ran a vector‑control campaign vaccinating hundreds of pets and fumigating homes.

31. 3 months ago

    [HEALTH] 13 sources

    Brazil's Anvisa forms expert panel to assess safety of Butantan dengue vaccine

    Anvisa created a specialist group on 16 June 2026 to review safety data on the Butantan dengue vaccine after 42 adverse events, including two deaths, were reported among 500,000 recipients.

32. 3 months ago

    [HEALTH] 2 sources

    Brazilian cities expand free vaccination, warn on dengue vaccine uptake

    Barra de São Francisco provides free vaccines for all ages, while Campo Grande stresses safety of the Qdenga dengue shot amid low coverage and a suspended Butantan vaccine.

33. 3 months ago

    [HEALTH] 4 sources

    Brazil halts Butantan dengue vaccine following severe adverse events

    Brazil's health ministry temporarily suspended the Butantan dengue vaccine after 42 severe reactions, including two deaths, urging recent recipients to monitor symptoms, while the Qdenga vaccine for children is

34. 3 months ago

    [HEALTH] 2 sources

    Brazilian towns Tupã and Apucarana cut Aedes aegypti infestation

    Tupã and Apucarana report major drops in Aedes aegypti egg counts and dengue cases after intensive ovitrap monitoring and community efforts.

35. 3 months ago

    [HEALTH] 3 sources

    Brazil's Butantan continues dengue vaccine trial in elderly

    Butantan will maintain its dengue vaccine trial for seniors in Brazil, assessing safety and immune response after the vaccine's suspension following severe reactions and two deaths.

36. 3 months ago

    [HEALTH] 2 sources

    Mogi Guaçu and Mario Campos in Minas Gerais launch new mosquito control programs

    Mogi Guaçu starts ovitrampa monitoring while Mario Campos releases Wolbachia‑infected mosquitoes, both aiming to curb dengue, Zika and chikungunya in Minas Gerais.

37. 3 months ago

    [HEALTH] 2 sources

    Brazil suspends Butantan dengue vaccine after 42 severe adverse events

    Brazil temporarily halts the Butantan dengue vaccine after 42 serious adverse events, urging recent recipients to watch for symptoms while investigations continue.

38. 3 months ago

    [HEALTH] 2 sources

    Brazilian municipal health agencies roll out training and street actions to curb Aedes aegypti

    Brazilian municipalities boost Aedes aegypti control through agent safety training in Primavera do Leste/Campo Verde and Rio de Janeiro's street‑inspection campaign.

39. 3 months ago

    [HEALTH] 4 sources

    Brazil keeps dengue vaccine Qdenga for children as Butantan dose suspended

    Brazil suspends the Butantan dengue vaccine for health workers after adverse events, but continues child immunisation with Takeda’s Qdenga nationwide, including São José, Schroeder and Goiás.

40. 3 months ago

    [HEALTH] 3 sources

    Brazil Suspends Dengue Vaccine After Severe Adverse Events and Two Deaths

    Brazil temporarily stops the Instituto Butantan dengue vaccine after 42 severe adverse events and two possible vaccine‑related deaths; investigations and active monitoring are underway.

41. 3 months ago

    [HEALTH] 2 sources

    Brazil suspends dengue vaccine rollout after three serious cases among health workers

    Brazil halted its dengue vaccine after three severe cases—including two deaths—among health workers, part of 42 serious reactions from ~500,000 doses, pending investigation.

42. 3 months ago

    [HEALTH] 2 sources

    Brazil suspends Butantan dengue vaccine amid severe adverse events

    Brazil halts the Butantan dengue vaccine after 42 severe adverse events, including two deaths, while the institute continues an elderly safety study.

43. 3 months ago

    [HEALTH] 2 sources

    Brazil suspends dengue vaccine rollout after three severe adverse cases

    Brazil pauses its dengue vaccine after two deaths and a serious case among health workers, launching a joint investigation into the three severe reactions.

44. 3 months ago

    [HEALTH] 2 sources

    Natal, Brazil Suspends Dengue Vaccine After Fatal Cases and Requires Pharmacy Notices for Free SUS Medicines

    Brazil suspends its dengue vaccine after two deaths and other severe cases, while Natal mandates pharmacy notices about free SUS medicines with fines for non‑compliance.

45. 3 months ago

    [HEALTH] 86 sources

    Brazil suspends Butantan dengue vaccine after two deaths and 42 serious cases

    Brazil has halted the Butantan dengue vaccine after 42 severe reactions, including two deaths, were reported among about 500,000 doses; investigations are underway and recent vaccinees are advised to seek care‑

46. 3 months ago

    [HEALTH] 3 sources

    Brazilian municipalities launch dengue control and aeromedical emergency initiatives

    Brazilian cities boost health measures: Varginha targets dengue breeding sites with fines and education, while João Pessoa adds a PRF helicopter and new motorbikes to speed emergency medical response.

47. 4 months ago

    [HEALTH] 3 sources

    Dengue outcomes diverge in São Paulo state, Brazil, in 2026

    Santo Antônio de Posse cut dengue cases by 99.4% in early 2026, while Taubaté recorded its sixth dengue death, raising the regional death count to ten amid 7,516 cases.

48. 4 months ago

    [HEALTH] 2 sources

    Minas Gerais deploys drones to map 497,000 hectares in fight against Aedes aegypti

    Minas Gerais health agency used drones to map 497,000 hectares, identifying 334,000 points, investing R$30 million, and eliminating over 5,200 Aedes aegypti breeding sites.

49. 4 months ago

    [HEALTH] 6 sources

    Fortaleza and Dourados ramp up Aedes aegypti control with larvicide stations

    Fortaleza is installing 11,740 larvicide stations city‑wide, while Dourados inspected nearly 6,000 homes, found 64 Aedes breeding sites and installed 1,008 stations, boosting Brazil's fight against dengue, Zika

50. 4 months ago

    [HEALTH] 2 sources

    Boa Vista launches intensive Aedes aegypti mutirão to curb rising dengue cases

    Boa Vista, Brazil, started a mutirão on 23 June targeting Aedes aegypti after a 13 % infestation in 13 de Setembro, amid a 36 % rise in dengue cases, with health and defence agencies urging household cleanup.

51. 4 months ago

    [HEALTH] 3 sources

    Ipatinga and Ilhéus see sharp drop in Aedes aegypti infestation

    Ipatinga and Ilhéus reduced Aedes aegypti infestation, but remain on alert.

52. 4 months ago

    [HEALTH] 5 sources

    Brazil reports surge in dengue cases and deaths in Minas Gerais and Paraíba

    Dengue cases rise sharply in Brazil’s Minas Gerais and Paraíba, with deaths confirmed in both states.

53. 5 months ago

    [HEALTH] 3 sources

    Dengue epidemic declared in Taubaté; Minas Gerais cases rise; Samu dismantling debate in Mato Grosso

    Taubaté declares dengue epidemic as Minas Gerais cases rise; Samu dismantling debate surfaces in Mato Grosso.

54. 5 months ago

    [HEALTH] 4 sources

    Dia D vaccination campaigns underway in Tocantins as dengue cases rise; Cuiabá to host influenza drive

    Dia D campaigns tackle dengue in Tocantins and influenza in Cuiabá, with 17 municipalities and 72 health units involved.

Sources

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