Halted Brazil trials of Chinese-made vaccine cause surprise
SAO PAULO (AP) - Brazil's health regulator has halted clinical trials of the potential coronavirus vaccine CoronaVac, citing an "adverse, serious event." |!| Elko
SAO PAULO (AP) - Brazil's health regulator has halted clinical trials of the potential coronavirus vaccine CoronaVac, citing an "adverse, serious event." |!| Elko