快新聞／日本COVID-19疫情快速降溫 最新研究曝原因
發布時間：2021/10/31 10:00:53
更新時間：2021/10/31 10:00:53
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日本COVID-19第5波疫情呈現快速降溫傾向，疫苗接種奏效等被視為可能原因。新研究指出，可能是負責修復Delta變異株基因組突變的酵素發生變化，來不及修復突變導致病毒絕滅。
日本共同通信社報導，國立遺傳研究所和新潟大學的研究團隊於30日彙整得出此結論。
報導稱，在8月下旬COVID-19（2019冠狀病毒疾病）疫情高峰前，幾乎全部病毒都已被nsp14酵素已變化的病毒所取代。國立遺傳研究所教授井上逸朗指出，這種病毒的基因組整體累積突變，很可能是來不及修復導致病毒絕滅。
研究結果已於10月中旬舉行的日本人類遺傳學會第66屆大會上發表。
（中央社）
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