Saudi Arabia will soon begin Phase III clinical trials on around 5,000 people for a Covid-19 vaccine developed by China's CanSino Biologics Inc, a Saudi health ministry spokesman said on Sunday.
Last month, CanSino's co-founder said the company was in talks with Russia, Brazil, Chile and Saudi Arabia to launch a Phase III trial of the vaccine candidate, Ad5-nCOV.
The vaccine uses a harmless cold virus known as adenovirus type-5 (Ad5) to carry genetic material from the coronavirus into the body.
Researchers said last month