CCTV, Beijing, August 6th (Reporter Song Xue) Recently, a study released by the Butantan Institute, an authoritative medical research institution in Brazil, showed that the China Coxing Vaccine can help the elderly over 70 years old effectively resist the new crown virus.
According to reports, the subject of the study is 43774 residents aged 70 and above living in the State of Sao Paulo, Brazil.
The gamma mutant strain first appeared in Brazil in November 2020, and has now spread widely in 75 countries including the United States and the United Kingdom
According to media reports, in the state of São Paulo, Brazil, gamma variant strain infections accounted for 90% of all confirmed cases
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