RIO DE JANEIRO, BRAZIL - The rush to find a vaccine against the novel coronavirus is very fierce. Some 136 are currently in development, some more advanced than the others. The Coronavac, manufactured by China's Sinovac, is between production stages 1 and 2.
According to Bloomberg, over 90 percent of the people who were given doses of this vaccine produced antibodies against Covid-19 within 14 days. Another successful candidate is Oxford University's vaccine in the UK, which is in stage 3 of testing.
Many wealthier countries are investing heavily to find a cure for Covid-19. In May . . .