【共同社4月11日电】日本厚生劳动省11日发布消息称，已确认抵达成田机场的30多岁女性感染了奥密克戎新亚型“XE”。XE是奥密克戎毒株“BA.1”和亚型“BA.2”遗传信息混合重组的毒株，被指可能比BA.2更易传播。这是国内首次确认感染例。
厚劳省称，该女性3月26日抵达成田机场。她到过美国，为无症状。（完）
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