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[SITUATION] · [ACTIVE]

2 clusters · 35 sources · 6 days · First seen 9 days ago · Last updated 3 days ago

Categories: HEALTH

Mato Grosso do Sul chikungunya outbreak 2026

Entities: Iagro (Agência Estadual de Vigilância Sanitária Animal e Vegetal) · Bonito · Secretaria de Estado de Saúde (SES) · Itaporã · Mato Grosso do Sul

Overview

In late July 2026, Mato Grosso do Sul’s health department reported a chikungunya surge. The July 23 bulletin listed 9,686 laboratory‑confirmed cases, 28 confirmed deaths across several municipalities and 114 infections among pregnant women. Dengue activity was also noted, with 4,718 probable cases (1,815 confirmed) and a large vaccine rollout targeting children aged 10‑14.

A week later, the July 29 update showed a modest rise to 9,729 confirmed chikungunya cases, while the death toll remained at 28 with an additional death under investigation. The number of confirmed dengue cases edged up to 1,828, including one dengue‑related death, and the vaccine administration figures were unchanged.

Authorities continued to urge prompt medical care for symptoms of either disease and to eliminate standing water to curb Aedes aegypti breeding.

Claims

What the coverage asserts, and how well corroborated each claim is across sources.

[● 8 SOURCES] Mato Grosso do Sul recorded 12,735 probable chikungunya cases in 2026. (SES epidemiological bulletin)
[● 8 SOURCES] 9,729 chikungunya cases were confirmed in Mato Grosso do Sul in 2026. (SES epidemiological bulletin)
[● 8 SOURCES] 28 deaths from chikungunya were confirmed in the municipalities of Dourados, Bonito, Jardim, Fátima do Sul, Douradina, Guia Lopes da Laguna, Itaporã, Ponta Porã and Nioaque. (SES epidemiological bulletin)
[● 8 SOURCES] One chikungunya death remains under investigation. (SES epidemiological bulletin)
[● 8 SOURCES] 114 confirmed chikungunya cases were reported among pregnant women. (SES epidemiological bulletin)
[● 8 SOURCES] Mato Grosso do Sul recorded 4,760 probable dengue cases in 2026. (SES epidemiological bulletin)
[● 8 SOURCES] 1,828 dengue cases were confirmed in Mato Grosso do Sul in 2026. (SES epidemiological bulletin)
[● 8 SOURCES] One dengue death was confirmed in Bonito in 2026. (SES epidemiological bulletin)

Timeline

3 days ago

[HEALTH] 15 sources
Mato Grosso do Sul records 9,729 confirmed chikungunya cases in 2026
Mato Grosso do Sul logged 9,729 confirmed chikungunya cases (out of 12,735 probable) in 2026, with 28 deaths across nine municipalities and 114 cases in pregnant women; dengue saw 1,828 confirmed cases and one死
9 days ago

[HEALTH] 27 sources
Mato Grosso do Sul records 9,686 confirmed chikungunya cases
Mato Grosso do Sul's bulletin reports 9,686 confirmed chikungunya cases, 28 deaths, plus dengue data and ongoing vaccination efforts.

Sources

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