U.S. Defence Secretary Lloyd Austin tested positive for COVID-19 on Sunday and has mild symptoms.
周日，美国国防部长洛伊德·奥斯汀确诊感染新冠肺炎，但症状较轻_6ZoG0z,BP;0。
Austin is one of the most senior members of President Joe Biden's administration to contract the disease.
奥斯汀是乔·拜登政府中感染该疾病的级别最高的官员之一[d_4QtRNWmD,Fax%。
In a statement, he said he last met Biden on Dec. 21, more than a week before he began experiencing symptoms.
在一份声明中，他表示自己最后一次见到拜登是在12月21日，是他开始出现症状前的一个多星期QWsv2)EB(|7&6。
Austin, who is fully vaccinated and has received a booster,
此前奥斯汀已经完全接种了疫苗，并接种了加强针，
said he would retain all authorities whilst he quarantines at home for five days.
他称自己将维持所有职权履行，同时居家隔离5天XjI![]zEOV,Mg011。

He said: "As my doctor made clear to me, my fully vaccinated status -- and the booster I received in early October
他说：“正如我的医生向我明确说明的那样，我已经完全接种了疫苗，而且我在10月初接种了加强针，
have rendered the infection much more mild than it would otherwise have been."
这使感染症状比没接种要温和得多QXZ3YPHgDDmqJ_。”
Last week the Pentagon tightened restrictions at its headquarters over concern about the highly transmissible Omicron variant.
上周，五角大楼出于对高传染性奥密克戎变种的担忧，加强了对其总部的限制#A^Tske|=c。
The military is faced with the challenge of maintaining military readiness for troops.
军方面临的挑战是保持军队的战备状态blJcSg)xiO4Z^Hj8。
Roughly 98% of active-duty troops have received the COVID-19 vaccine, which is now mandatory for them.
约98%的现役军人已经接种了新冠疫苗，现在这是强制性的#1]NBWn#|B~]Op3))fH。
U.S. authorities registered nearly 347,000 new coronavirus cases on Saturday, according to a Reuters tally.
根据路透社的统计，美国当局在周六报告了近34.7万例的新冠肺炎确诊病例6=oT,4EFnM。