Governor Joo Doria added that phase 2 trials of the vaccine had shown a 98% immune reaction in the elderly.
Some 9,000 Brazilian volunteers are in sinovac vaccine trials, which are being conducted through the Butantan Institute in the city of Sao Paulo and 11 other sites, adding the capital, Brasilia.
Brazil, which is experiencing the third worst coronavirus outbreak in the world after the United States and India, has a test floor for at least two candidate vaccines.
One such vaccine is being developed through AstraZeneca, which has had to undergo global trials after an unexplained disease in a player in Britain.
Trials of the AstraZeneca vaccine in 5,000 volunteers in Brazil are complex and have not produced disorders in the participants, according to the immunobiology center of the Federal University of Sao Paulo, which is conducting the trials.
Vaccination of volunteers in Sao Paulo, Rio de Janeiro and Salvador was discontinued, but the paintings continue to monitor those who won the first and even the dose at the moment, a representative of the university said.
Phase 3 trials of the Russian vaccine “Sputnik-V” COVID-19 with 10,000 volunteers will be conducted in Brazil in partnership with the Paraná State Institute of Technology, known as Tecpar.
Brazilian laboratory and hospital DASA SA said Wednesday that it agreed to conduct phase 2 and 3 trials in Brazil for a COVID-19 vaccine developed through COVAXX, a unit of United Biomedical Inc.
On Tuesday, Brazil’s interim fitness minister, Eduardo Pazuello, said a COVID-19 vaccine would be deployed for all Brazilians as a component of mass vaccination in January.