新2手机管理端网址（www.99cx.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.新2手机管理端网址（www.99cx.vip）实时更新发布最新最快最有效的新2手机管理端网址,包括新2手机网址,新2备用网址,皇冠最新网址,新2足球网址,新2网址大全。
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.