# Brazil SRAG incidence rises in several states > Live situation record from CLSTR: https://clstr.news/situations/brazil-child-srag-mortality-rise > Updated: 2026-09-10T15:11:16.000Z. Sources: 14. Developments: 7. By mid-September 2026, epidemiological data from Fiocruz’s InfoGripe bulletin indicates that while national trends for Severe Acute Respiratory Syndrome (SRAG) are stabilizing or oscillating, several states are reporting increasing long-term trends. Specifically, Goiás, Maranhão, Mato Grosso, Mato Grosso do Sul, and Rio de Janeiro have reached alert, risk, or high-risk levels. A sustained increase in SRAG cases is being observed among children and adolescents aged 2 to 14, primarily driven by rhinovirus. In Mato Grosso, the rising incidence affects children and adolescents aged 5 to 14, as well as seniors over 65, with potential links to influenza B. In Rio de Janeiro, metapneumovirus has also contributed to rising cases in younger age groups. Nationally, the decline or stabilization in other age groups is attributed to a decrease in influenza hospitalizations and a drop in severe cases caused by Respiratory Syncytial Virus (RSV). While Acre has seen an increase in rhinovirus-related cases, the state is not classified as having an increasing long-term trend and maintains a 75% probability of a decrease in cases. Previously, Mato Grosso reported a concentration of cases among children aged 2 to 4 years and had administered over 750,000 influenza vaccine doses, primarily targeting seniors and children under six. Although incidence is high among young children, mortality remains most concentrated in the population aged 65 and older. ## Claims - Acre, Maranhão, Paraná, Rio Grande do Sul and Santa Catarina remained at risk or high‑risk with rising SRAG trends. (disputed by 2 sources) - Acre is not among the Brazilian states with Severe Acute Respiratory Syndrome (SRAG) incidence at alert, risk, or high-risk levels. (disputed) - Hospitalizations for severe acute respiratory syndrome (SRAG) decreased in most of Brazil during epidemiological week 28 (12‑18 July 2026). (corroborated by 2 sources) - The decline in SRAG hospitalizations was driven by reductions in cases of respiratory syncytial virus (RSV) and influenza A and B. (corroborated by 2 sources) - The capitals Rio Branco, João Pessoa and São Luís reported growth in SRAG cases. (corroborated by 2 sources) - Children up to two years old have the highest incidence of SRAG, mainly due to RSV. (corroborated by 2 sources) - Mortality from SRAG remains higher among people aged 65 plus, especially due to influenza A. (corroborated by 2 sources) - Total SRAG notifications reached 1,999 up to week 28 2026, exceeding 1,732 in 2024 and 1,481 in 2025. (corroborated by 2 sources) - Acre recorded 52 deaths from SRAG up to week 28 2026, including 13 deaths among children under two. (single source) - Alagoas, Mato Grosso, and Roraima show SRAG incidence at alert, risk, or high-risk levels. (single source) - 141,009 cases of SRAG were reported in the 2026 epidemiological year. (single source) - Três Lagoas recorded 599 dengue notifications, with 76 confirmed cases. (single source) ## Timeline ### 2026-09-10: Fiocruz reports rising SRAG incidence in five Brazilian states Fiocruz reports rising SRAG incidence in five Brazilian states, driven by rhinovirus among children and adolescents, while other age groups show stabilizing trends due to lower influenza hospitalizations. 3 sources. https://clstr.news/cluster/fiocruz-reports-rising-srag-incidence-in-five-brazilian-states ### 2026-09-02: Mato Grosso reports rise in severe respiratory syndrome cases among children Mato Grosso reports a rise in severe acute respiratory syndrome (SRAG) cases, particularly among children aged 2 to 4, according to Fiocruz data. 4 sources. https://clstr.news/cluster/mato-grosso-reports-rise-in-severe-respiratory-syndrome-cases-among-children ### 2026-08-26: Brazil health reports show varying SRAG and dengue trends Brazilian health reports show varying trends: Acre remains off the SRAG alert list, while Três Lagoas reports dengue and Covid-19 cases, and Londrina sees a slight rise in SRAG hospitalizations. 5 sources. https://clstr.news/cluster/brazil-health-reports-show-varying-srag-and-dengue-trends ### 2026-08-19: Brazil health reports show declining trends in SRAG and dengue Health reports from Brazil show a downward trend in SRAG cases in Acre and a 71% reduction in dengue cases in Londrina, though respiratory virus circulation remains a concern for pediatric health. 2 sources. https://clstr.news/cluster/brazil-health-reports-show-declining-trends-in-srag-and-dengue ### 2026-08-15: Brazil reports shifting trends in Severe Acute Respiratory Syndrome cases Brazil reports a general decline in Severe Acute Respiratory Syndrome (SRAG) cases, though Acre sees a rise in deaths among children under two due to RSV, and 14 states remain at high risk. 2 sources. https://clstr.news/cluster/brazil-reports-shifting-trends-in-severe-acute-respiratory-syndrome-cases ### 2026-07-25: Brazil records overall drop in severe respiratory virus hospitalizations, with rises in Acre and Rio Branco InfoGripe data show Brazil’s SRAG hospitalizations fell in most states during week 28, while Acre, Maranhão, Paraná, Rio Grande do Sul and Santa Catarina stayed high‑risk and Rio Branco, João Pessoa and São Luí 3 sources. https://clstr.news/cluster/brazil-records-overall-drop-in-severe-respiratory-virus-hospitalizations-with-rises-in-acre-and-rio- ### 2026-07-03: Brazil sees surge in child SRAG deaths as Acre reports children over 50% of fatalities In Acre, children now represent 52% of SRAG deaths, a shift from older age groups, while most Brazilian states stay on alert for the illness driven mainly by RSV. 3 sources. https://clstr.news/cluster/brazil-sees-surge-in-child-srag-deaths-as-acre-reports-children-over-50-of-fatalities --- Cite as: Brazil SRAG incidence rises in several states. CLSTR, https://clstr.news/situations/brazil-child-srag-mortality-rise