[REVISION HISTORY]

Brazil intensifies measles surveillance and vaccination

Updated 29 times since CLSTR started tracking revisions of this situation.

What changed

2026-10-08 01:59 UTC → 2026-10-11 18:07 UTC · added ~~removed~~

Brazil ~~health response expands amid~~ intensifies measles surveillance and ~~West Nile~~ vaccination

Following ~~the Pan American Health Organization’s warning of~~ a ~~Southern‑Hemisphere~~ surge in respiratory ~~virus surge,~~ viruses in early 2026, Brazil’s health authorities intensified surveillance and vaccination efforts throughout the 2026 winter. Early measures included the rollout of the 20‑valent pneumococcal vaccine (Pneumo 20), seasonal influenza shots, a maternal RSV vaccine, and nirsevimab for infants. Data from the first half of 2026 show that the universal health system (SUS) achieved roughly 90% coverage of the maternal RSV vaccine, reducing severe acute respiratory syndrome (SRAG) hospitalisations in infants under six months by 52%. In August 2026, focus shifted focus toward a measles ~~resurgence. The Ministry of Health launched~~ resurgence in August. While the ~~2026~~ National Multivaccination Campaign ~~on 3 August, which has since concluded after administering~~ administered over 8 million ~~doses nationwide. By mid-September, the measles situation expanded. In~~ doses, localized outbreaks emerged in São ~~Paulo,~~ Paulo and the ~~annual confirmed case count rose to 36. The capital city accounts for 88% of these infections,~~ Amazonas state. By early October 2026, Brazil recorded 52 imported measles cases, with ~~cases also reported~~ 41 in ~~Santo André,~~ São ~~Bernardo do Campo,~~ Paulo, 10 in Amazonas, and ~~Guarulhos. Of the total, 26 individuals had no record of vaccination or an incomplete schedule. While~~ one ~~transmission chain involving imported cases was declared closed, three others identified between June and August remain under active~~ in Rio de Janeiro. Despite these imports, authorities emphasize that Brazil maintains its status as a country free from endemic measles circulation, a certification regained in November 2024. This monitoring ~~by the State Epidemiological Surveillance Center (CVE-SP). In the Amazonas state, the situation~~ follows a broader regional increase in ~~the border municipality of Tabatinga has escalated. The Amazonas Health Surveillance Foundation (FVS-RCP) confirmed five~~ cases ~~involving Peruvian nationals,~~ across the Americas, including ~~three children and two adults. In response,~~ significant outbreaks in the ~~Ministry of Health~~ United States, Guatemala, Mexico, Peru, and ~~FVS-RCP~~ Canada. To mitigate risks, Brazilian health teams are conducting ~~intensified surveillance and immunization actions in Tabatinga, Atalaia do Norte,~~ active case searches, epidemiological investigations, and ~~Benjamin Constant between 21~~ contact tracing. In response to the measles threat and ~~25 September. To mitigate risk, authorities~~ incomplete vaccination records, regional vaccination initiatives have ~~authorized a “dose zero” of~~ been launched. In São Paulo, the ~~measles vaccine~~ State Health Secretariat is providing free yellow fever, influenza, and triple viral vaccines at the National Sanctuary of Our Lady of Aparecida to reach pilgrims. Additionally, in Sorriso, a multi-vaccination campaign for children ~~aged 6~~ and adolescents is underway through late November, offering 18 different vaccines to ~~11 months in the affected municipalities.~~ improve immunization coverage.

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