Confusion reigns over the exact efficacy rate of a Chinese Covid-19 vaccine due to be rolled out in Thailand next month. Thailand has ordered 2 million dosesof the Sinovac Biotech vaccine, while its rollout among high-risk groups in Indonesia is expected to begin this week. However, questions now hang over the vaccine’s efficacy rate, originally reported as 78% in trials in Brazil but more recently downgraded to just over 50%. In total, 4 different efficacy rates have been reported, depending on the country conducting trials.
In Indonesia, where President Joko Widodo is set to get his first dose of the jab today, data from a local trial indicates an efficacy rate of 65%. However, with only 1,620 participants, the trial is considered too small for the data to have much value. Last month, Turkey reported an efficacy rate of 91.25% in its trial, which was also deemed too small to…
