Dr Opas, however, insisted it was still too soon to say whether a booster shot is actually needed and if the shot can come from a different manufacturer. As for other Covid-19 vaccines that induce lower rates of immune responses, he said, third shots may need to be used as boosters while the kingdom waits for new vaccines to be developed to specifically deal with the Delta variant. "In the meantime, Thailand needs to closely monitor how each existing coronavirus variant is spreading to keep track of them all, especially the fast-spreading Delta variant," Dr Yong said. In response to growing public concern over lower immune responses induced by Covid-19 vaccines, Dr Opas said the ministry is also monitoring information taken from the ongoing mass vaccination drive. However, everyone in the country will be vaccinated as promised, Dr Yong said.

Source: Bangkok Post June 21, 2021 21:33 UTC