# Dengue prevention and mosquito control initiatives

> Live situation record from CLSTR: https://clstr.news/situations/dengue-prevention-and-mosquito-control-initiatives
> Updated: 2026-09-12T23:37:37.000Z. Sources: 12. Developments: 2.

Municipalities in Argentina and Mexico have initiated various public health measures to combat the spread of dengue. In Argentina, regions such as Escobar and Chivilcoy launched free vaccination campaigns targeting residents aged 15 to 59 to mitigate risks associated with the El Niño phenomenon, which is expected to increase mosquito breeding sites.

Complementary community-led efforts have also been implemented to eliminate mosquito breeding grounds. In Pehuajó, Argentina, residents participated in 'descacharreo' days to remove objects that collect stagnant water. Similarly, in Matamoros, Mexico, municipal teams conducted container removal, distributed larvicide, and held educational sessions to instruct families on mitigating mosquito risks.

## Timeline

### 2026-09-12: Local authorities launch mosquito control initiatives to prevent dengue

Municipalities in Pehuajó, Argentina, and Matamoros, Mexico, are implementing mosquito control programs to prevent dengue by removing breeding sites and educating residents.

2 sources. https://clstr.news/cluster/local-authorities-launch-mosquito-control-initiatives-to-prevent-dengue

### 2026-09-09: Argentina municipalities launch free dengue vaccination campaigns

Argentine municipalities are offering free dengue vaccinations for people aged 15-59 to combat rising risks linked to the El Niño phenomenon and increased mosquito breeding sites.

10 sources. https://clstr.news/cluster/escobar-provides-free-dengue-vaccines-to-combat-el-nio-risks

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Cite as: Dengue prevention and mosquito control initiatives. CLSTR, https://clstr.news/situations/dengue-prevention-and-mosquito-control-initiatives