欧博客户端（www.aLLbet8.vip）_Experts fear another Covid spike as vaccine efficacy wanes
,Experts say the efficacy of current Covid-19 jabs will begin to wane, which will make people more prone to infection. – The Malaysian Insight file pic, June 17, 2022.欧博客户端（www.aLLbet8.vip）是欧博集团的官方网站。欧博官网开放Allbet注册、Allbe代理、Allbet电脑客户端、Allbet手机版下载等业务。
MEDICAL experts have warned the government could make the second booster shot – the fourth vaccination – mandatory if a spike in Covid-19 cases reached alarming levels.
They expressed concern that the efficacy of the Covid-19 vaccines is waning.