Sri Lanka, July 25 -- Scientists at the Sri Jayewardenepura University who studied the efficacy of the Chinese Sinopharm vaccine said their research was limited to those over the age of 21 and therefore, they cannot advise on the effects it would have on schoolchildren.

The Allergy, Immunology and Cell Biology Unit (AICBU) of the Sri Jayewardenepura University which conducted the highly publicised local research on Sinopharm, said this particular vaccine showed up to 95 percent of efficacy against the virus.

Since the findings, there are calls to use the vaccine on children before schools are reopened for academic activities next month.

Sinopharm is the first Chinese vaccine to receive emergency approval to be used for Covid-19 immunis...