Sinopharm’s 2 Covid-19 vaccines show over 70% efficacy against symptomatic cases: Study
A nurse prepares a dose of China's Sinopharm coronavirus disease (Covid-19) vaccine at a health center in Caracas, Venezuela, on March 7, 2021.Reuters Two Covid-19 vaccines from China's Sinopharm showed more than 70 per cent efficacy against symptomatic cases, but it remains unclear how much protection they provide against severe or asymptomatic cases, according to the...