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重庆市卫健委周四公布，截至当日凌晨12时，该市新冠肺炎新增病例中，除三代感染病例占比例明显增加，溯源还发现2月10日该市首次出现2例四代感染病例，传染链条延长，防控难度进一步加大。

截至周四凌晨12时，重庆市累计新冠肺炎确诊病例518例、死亡病例3例，出院病例102例。

此外，专家认为，随着全重庆市各地疑似病例排查力度不断加大，密切接触者人群范围也随之扩大，间接对易感人群形成保护，疑似转确诊比例、密切接触者转确诊比例呈下降趋势，这对未来一周疫情防控将起到积极作用。

不过，专家也表示，新增病例中出现2例四代感染病例，传染链条延长，防控难度进一步加大。