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译自Medhelp
Someonehasacutandwasexposedtosomeoneelse'scut.Thisdoesnotposeariskformanyreasons.First,theskinservesasanEXCELLENTbarriertothevirus.Theskiniscomprisedofseverallayers,andinjuries,likepapercuts,etc...beginhealingIMMEDIATELYfromtheinsideout.Therefore,evenifthereISasuperficialabrasion/laceration,itwillnotallowthevirustopenetratedeepenoughtoreachthebloodstream,whichiswhathastohappenforinfection.InaVERYseverescenario,theremaybearisk....forexample,twopeoplebeinginacaraccidentwithlargemajorhemorrhaginginjurieswherethereisHUGEexposuretotheotherperson'sbloodthroughaverysignificant(deep)injury.However,again...beingexposedtosomeoneelse'sbloodinsmallamounts,evenwithasmallcut,willNOTplaceyouatrisk.有些人有个小伤口暴露于别人的小伤口。无论如何这都没什么危险。首先,皮肤是一个阻止病毒的非常好的屏障。皮肤有好几层组成,而一些伤口,比如小伤口等,可以很快地从伤口内部开始愈合。所以,即使是表皮的破损/破口,病毒也不能穿透足够的深度到达血液循环系统,这是构成感染的必要条件。在一些非常极真个情况下,可能会有风险,比如,交通事故中的两个人,身上有比较大流血的伤口,也就是通过很深的伤口暴露于别人血液的之中。然而,再反复一次,暴露于别人很少的血液,即使有个小伤口,也不会有风险。
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