Australia-Why did the quarantined hotel staff not spread in the community after contracting the British variant virus? – Australia Chinatown | Current news at home and abroad | Finance and Economics | Education | Real estate investment

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Recently in Australia, staff in quarantine hotels were infected with the new coronavirus in the quarantine area. This raises a big question: Although they are all infected with a highly contagious British variant strain, why did they not spread the virus to others?In the three incidents where the virus leaked from the hotel quarantine area (first in Brisbane, then in Perth, then in Melbourne), each infected patient did not spread the virus to anyone at all.Brisbane and Perth therefore ordered lockdowns, but the virus did not spread to anyone in the community.Maybe this is just lucky, but there may be a medical explanation.New South Wales...
    澳大利亚最近有隔离酒店的工作人员在检疫区感染了新冠病毒,这提出一个大问题:尽管他们都感染了具有高度传染性的英国变种毒株,为什么他们没有将病毒传播给其他人?

在三起病毒从酒店隔离区泄露的事件中(首先发生在斯班,然后在珀斯,然后在墨尔本),每个被感染的患者完全没有将病毒传播给任何人。

斯班和珀斯因此下令封锁,但病毒并未传播给社区中的任何人。

也许这只是幸运,但可能会有医学上的解释。新南威尔士大学(UNW)名誉教授,免疫学家John Dwyer有一种理论。“这些工人可能是从那些接近感染期结束那里感染COVID-19的,当时那个人正在散发病毒但并不是以有传染性的形式,”.

"In that case, you may still be infected with the virus, but you will not spread it because it is a non-live virus. You may be infected with the remnants of the virus, but it will not cause any disease or reproduce in the infected person. form."

Dwyer 教授说,诊断COVID-19的PCR非常敏感,即使感染者仅感染了病毒的残留物,也会产生阳性结果。

“当你在中呈阳性时,这并不能告诉你你是否具有传染性。”。 “大多数时候你会的,但并非总是如此。”

新南威尔士大学生物安全项目负责人Raina MacIntyre也有类似的理论。她认为,从隔离患者那里感染了新冠病毒,可能是在感染多日后才被测出,但这种感染不再具有传染性。

“他们可能在酒店检疫中得到假阴性,但实际上已被感染了,” MacIntyre教授说:“峰值传染性在感染中出现的非常早,所以到你测出阳性时可能很晚了,很可能峰值传染性已经过去了。在症状开始前两天以及症状出现的第一天,你处于感染性的绝对。之后,传染性呈指数下降。”

据估计,每个感染了英国毒株会将其传播给3.4人,而最原始的感染株是传播给2.5人。

传染病医生anjaya enanayake 表示,在澳大利亚的条件下,英国毒株可能不像在英国那样具有传染性。

(The copyright of this article is owned by The Australian)


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