Brazil's Oswaldo Cruz Foundation (Fiocruz) in Rio de Janeiro has identified, by genomic analysis, the replacement of strain BA.1 by strain BA.2 in samples analyzed between May 20 and June 2. Both are subvariants of Omicron.
According to a study released Tuesday by Brazil's Oswaldo Cruz Foundation (Fiocruz), patients who have taken the two-shot scheme of CoronaVac's drug would be better off if they receive a booster injection of the Pfizer vaccine.
Brazil's Fiocruz Institute Monday announced the first two cases of the BA.2 sublineage of the SARS-Cov-2 Omicron variant had been detected in the country: one in the State of Rio de Janeiro and the other in the State of Santa Catarina.
Brazil's National Health Surveillance Agency (Anvisa) Friday approved the first nationally manufactured COVID-19 vaccine. The body is also considering a second pediatric drug after having cleared Pfizer's for children aged 5 to 11.