CORONAVIRUS: 研究發現，兩劑中國的西諾瓦克疫苗，再加上一個輝瑞公司的加強劑，對歐米茄有保護作用。然而，第三劑華銳疫苗作爲加強劑，"並不能提供足夠的保護性抗體水平"。
CORONAVIRUS: Study finds that two doses of China's Sinovac vaccine, followed by a Pfizer booster, is protective against omicron. However a third Sinovac dose, as a booster, 'does not provide adequate levels of protective antibody'.
— The Spectator Index (@spectatorindex) 2021-12-23 18:38