Nations with most cases: US (31,197,872), India (13,527,717), Brazil (13,482,023), France (5,119,585), Russia (4,589,209).
Chinese mulls increasing effectiveness of vaccines
After intense backlash in the scientific community over the effectiveness of Chinese made vaccine, a top offical has acknowledged that the country’s vaccines may need to be administered in greater doses or in combination with other shots because of their low overall effectiveness. More than 60 countries have approved Chinese vaccines so far and they may need to work out their distribution strategy to increase the effectiveness. Possible steps to increase the effectiveness of vaccines include changing the amount of vaccine given, the number of shots, the time between shots or the type of vaccines given, said the director of China’s disease control center. The long-awaited Brazilian study of the Sinopharm's vaccine showed just over 50 per cent efficacy, much lower when compared with Pfizer, Moderna and even AstraZeneca.
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