The more aggressive type of virus was found to be prevalent in the early stages of the outbreak in Wuhan — the Chinese city where COVID-19 was first detected late last year. 更具侵略性的病毒類型流行於早期爆發的武漢。武漢是去年年底首次發現COVID-19的中國城市。
But the frequency of this type of virus has since decreased from early January, the scientists said. 科學家們說，但是從一月初以來這種類型病毒的出現頻率已經下降。 Researchers cautioned that data examined in the study was still "very limited." 研究人員警告說，研究中檢查的數據仍然“非常有限”。
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The more aggressive type of virus was found to be prevalent in the early stages of the outbreak in Wuhan — the Chinese city where COVID-19 was first detected late last year.
更具侵略性的病毒類型流行於早期爆發的武漢。武漢是去年年底首次發現COVID-19的中國城市。
科學家們說，但是從一月初以來這種類型病毒的出現頻率已經下降。
Researchers cautioned that data examined in the study was still "very limited."
研究人員警告說，研究中檢查的數據仍然“非常有限”。