Boris Johnson said England’s coronavirus test and trace system had to improve after it recorded its worst weekly performance since its launch in May, with testing turnround times soaring and the proportion of contacts of infected people reached falling to a record low.
鲍里斯•约翰逊(Boris Johnson)表示，英格兰的新冠病毒检测和追踪系统必须加以改进，之前这套系统录得自5月启动以来的最差单周表现，检测出结果的时间大幅增加，系统联系到的感染人员接触者比例降至创纪录低点。
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