Anvisa in a statement said the vaccine will be applied in two doses, 28 days apart. Phase I of Butanvac’s clinical trial will involve 400 volunteers, and the first two phases are expected to involve 6,000 volunteers in total.

In a separate statement, Butantan said the tests will begin in the coming days in Riberao Preto, a city in the state of Sao Paulo.

Butantan said it has around 10 million doses of the Butanvac shot in stock, which will be used to assess the vaccine’s safety and efficacy in the trials. It hopes to have 40 million shots ready for use by October, it added.

Brazil registered 54,022 new COVID-19 cases and 1,648 new deaths in the past 24 hours, the Health Ministry said on Wednesday. This brings the total in Brazil to nearly 18.9 million cases and 528,540 deaths.

(Reporting by Jamie McGeever and Eduardo Simoes; Editing by Leslie Adler and Bill Berkrot)

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