RIO DE JANEIRO, BRAZIL - A week after requesting information from the pharmaceutical companies that produce Covid-19 vaccines used in the country, the Brazilian Health Regulatory Agency (ANVISA) announced the replies received. The agency requested information on studies regarding the Omicron variant.
In reply to the agency, Pfizer and Fiocruz clarified the strategies used. The Butantan Institute, responsible for the Coronavac vaccine, asked for an extension until next Monday to reply.
Janssen has not yet replied. ANVISA requests monitoring and assessment data on the impact of the discovered variants of Covid-19 against the effectiveness of the vaccines produced by . . .
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