Two Sinovac doses 98% effective against death, severe symptoms: Thai expert

BANGKOK (The Nation/ANN): Two doses of Sinovac vaccine are 98 per cent effective in preventing death and severe symptoms from Covid-19, said a Department of Disease Control expert.

Dr Thaweesub Sirapraphasiri said the department had been studying the vaccination history of medical professionals to determine the efficacy of each type of vaccine against Covid-19.