Brazilian health authorities started the mass immunization of Rio de Janeiro's Mare neighborhood. It's a novel bid to control COVID-19 in a poor community while studying vaccine effectiveness and the prevalence of worrisome variants.
People arrive at a vaccination center on the first day of a three-day COVID-19 vaccination campaign for people over age 35 in the Complexo da Maré favela of Rio de Janeiro, Brazil, Brazil, Thursday, July 29, 2021. Some recipients will be monitored to study the rate of protection the vaccines provide and the extent to which virus variants are circulating.
Rio is currently providing first vaccine doses to 34-year-olds. As such, the Brazilian government’s Fiocruz Institute aims to inoculate more than 30,000 Mare residents aged 18 to 33, and bring vaccine coverage of the adult population to near 100%, according to Dr. Fernando Bozza, the study’s coordinator. First doses of the AstraZeneca vaccine will be administered over the course of three days at 30 locations across Mare.“This is important for Mare and for Brazil as a whole.
Any positive COVID-19 tests in Mare over coming months will be genomically sequenced, which at present is scarcely done in Brazil. That will allow for observation of worrisome variants, like the highly contagious delta strain that hasafter ravaging majority unvaccinated populations in other nations.
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