RIO DE JANEIRO, BRAZIL - The Brazilian Health Regulatory Agency (ANVISA) on Wednesday, December 1, announced that it has requested the developers of Covid-19 vaccines authorized in Brazil to provide data on ongoing studies related to the new Omicron variant.
"Anvisa requests that developers of authorized vaccines should monitor and assess the impact of variants on the efficacy and effectiveness of immunizers. However, it should be noted that these studies require time, since genetic information and patient samples must be obtained in order to conduct the tests and analysis," the agency said.
The companies developing immunizers will conduct performance tests . . .
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