圖3:新冠病毒進(jìn)入細(xì)胞的主要途徑[5] 一旦新冠病毒成功進(jìn)入人體細(xì)胞,并完成上述一系列過(guò)程,感染就真正開始了。2020年3月20日,為了讓新冠肺炎的診治更規(guī)范,哈佛醫(yī)學(xué)院布列根和婦女醫(yī)院Mandeep R. Mehra和Hasan K. Siddiqi率先提出了一個(gè)新冠肺炎的臨床分期系統(tǒng)[10]。他們將新冠肺炎的病生理過(guò)程分成三個(gè)階段:I期(輕度),早期感染;II期(中度),肺部受累;III期(嚴(yán)重),全身性過(guò)度炎癥。接下來(lái)咱們就逐一認(rèn)識(shí)這三個(gè)階段。▌先來(lái)說(shuō)I期(輕度)——早期感染。
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