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Notícias | Comunitária 87.9 FM
Início Notícias Coronavac mantém proteção após seis meses da segunda dose Voltar

Coronavac mantém proteção após seis meses da segunda dose

Coronavac mantém proteção após seis meses da segunda dose

A vacina Coronavac, da farmacêutica chinesa Sinovac, manteve a proteção contra o vírus da Covid-19 após seis meses da aplicação da segunda dose, mostra estudo de efetividade do Instituto Butantan, no município de Serrana, no interior paulista. 

Segundo a análise, as taxas de anticorpos para se defender da infecção contra o SARS-CoV-2 em todas as faixas etárias se mantiveram acima de 99%. Além disso, a dose de reforço da mesma vacina em idosos aumentou de duas a quatro vezes os níveis de anticorpos.

Os dados fazem parte das conclusões preliminares da segunda etapa de sorologia e avaliação da resposta imunológica dos voluntários do Projeto S, como o estudo de efetividade é chamado. A população de Serrana foi vacinada no primeiro semestre de 2021 para avaliar a capacidade da Coronavac de conter a pandemia e a transmissão do vírus. 

Foram feitas três coletas de sorologia no município: em julho e em outubro de 2021, e em janeiro de 2022. A última coleta de sorologia será feita em abril. A participação na pesquisa é voluntária e envolve pessoas de qualquer idade que tenham se vacinado no contexto do Projeto S. 

De acordo com o Butantan, inicialmente o projeto seria encerrado após um ano da conclusão do esquema vacinal, mas a equipe deve pedir a renovação e continuar as análises por pelo menos mais um ano. Isso ocorre devido à adaptação dos esquemas vacinais, com a administração de doses de reforço; ao surgimento de novas variantes; e à manutenção das altas taxas de transmissão.

A proposta de uma nova fase é seguir coletando dados sobre a imunidade gerada pela vacina ao longo do tempo, além de saber como os anticorpos e a imunidade celular vão se comportar diante de casos mais graves.





Autor: Rádio Comunidade

Data da Postagem: 15/02/2022 16:10:00

Fonte: Agência Brasil /Foto: Breno Esaki / Divulgação / CP