Researchers from one of Sri Lanka's leading universities, the Sri Jayewardenepura University, have found that China's Sinopharm COVID-19 vaccine is highly efficient against the Delta variant which has become the dominant strain across the world.
Researchers from one of Sri Lanka's leading universities, the Sri Jayewardenepura University, have found that China's Sinopharm COVID-19 vaccine is highly efficient against the Delta variant which has become the dominant strain across the world.
