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中新网北京7月8日电(蒋鲤)新冠肺炎疫情正好全世界范畴内广大流传截止日前，已有多国先后在早前的血液、咽拭子、活检、污微信建群群二维码水等样本中发觉新冠病毒，且早于本国日前已知的最早流传时间　　美国探讨人士6月15日在本国《临床传染病》杂志上发表全新探讨汇报，对2020年1月2日至3月18日时期从全美50个州采集的24079个血液样微信建群群二维码本发展了新冠抗体检验和剖析。

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结果发觉，有9个样本呈抗体阳性，此中7例来源伊利诺伊州等5个州的病例，时间早于这5个州官方推出的首例确诊病例微信建群群二维码时间这表达新冠病毒2019年12月就已在美国显露　　没有独有偶，加利福尼亚大学洛杉矶分校之前也曾发表汇报称，新冠病毒可能早在2019年12月就已存留于洛杉矶地域。

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除美国之外，日本从2微信建群群二维码019年年初的血液样本发觉了新冠病毒抗体，意大利、法国区别在2019年12月采集到的活检样本和咽拭子样本中检验出新冠病毒西班牙、巴西等国的探讨人士也区别在本地汇报最早确诊病例此前的废水样本中寻到了新冠微信建群群二维码病毒存留的踪迹。

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这点发觉不停改写着新冠病毒流传的时间线　　多国科学家和探讨人士全在尽力探索新冠病毒流传的时间点，追溯疫情的起源，以求尽早攻破这一全世界大盛行疾病然则，美国少许别有效微信建群群二维码心的政客和媒体，却在病毒溯源难题上始终将矛头对准华夏。

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它们没有视世卫组织的考查结果，对本国的病毒溯源难题只字不提，对少许反对“武汉实验室泄漏”阴谋论的科学家发展政治打压和人身进微信建群群二维码击　　究其原因，是美国对华夏的进行感觉焦虑，深恐威胁到其全球霸主位置它们须要寻觅各式借口诋毁和打压华夏，让华夏处于世界舆论的风口浪尖，这也是它们一贯运用的手段。

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