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一名新冠肺炎康复者自欧洲返回香港后，其新冠病毒检测结果再次呈阳性。香港大学微生物学系团队证实，该患者是第二次感染新冠病毒，属全球首例。 Hong Kong scientists are reporting the case of a healthy man in his 30s who became reinfected with coronavirus four and a half months after his first bout. 香港科学家报告说，一名30多岁的健康男子在首次感染新冠病毒四个半月后第二次感染。 bout [baʊt]：n.回合；发作 | 
