AstraZeneca Plc shots as part of one Covid-19 vaccine regime, in a world first aimed at increasing protection against the more contagious delta variant.
The Southeast Asian nation will start giving the China-made Sinovac vaccine as a first shot to be followed by Astra three to four weeks later, health ministry officials said at a briefing near Bangkok Monday.
The decision is based on three separate local studies, which showed that following Sinovac with Astra elicited an immune response that’s as high as using two doses of Astra 12 weeks apart, according to Opas Karnkawinpong, director-general of Thailand’s Department of Disease Control.