Coronavirus May ‘Reactivate’ in Cured Patients, Korean CDC Says

Re:Coronavirus May ‘Reactivate’ in Cured Patients, Korean CD... by incompatible on Thursday April 09, 2020 @03:58AM (#22820629)

Something I read recently is that the immune system is complex containing both an innate immune system an adaptive immune system. It's possible that in mild cases of Covid-19, it may be successfully handled by the innate immune system, which doesn't confer additional immunity. A mild case my occur if the initial infection is by a relatively small number of virus particles.

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Re:Coronavirus May ‘Reactivate’ in Cured Patients, Korean CD... by hutzlibu on Thursday April 09, 2020 @04:02AM (#22820648)

Also possible yes. The killer cells (do not know the proper english name) are general purpose defense cells against anything that the body does not know. Only if there are too many unkown cells of similar type, they get categorized by other cells in the lymphs of the immune system and then other cells finally produce antibodies. But that process takes time.

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Re:Coronavirus May ‘Reactivate’ in Cured Patients, Korean CD... by frank2 on Thursday April 09, 2020 @04:04AM (#22820651)

>The big "eating" cells (do not know the proper english name)

macrophage

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Re:Coronavirus May ‘Reactivate’ in Cured Patients, Korean CD... by hutzlibu on Thursday April 09, 2020 @04:37AM (#22820786)

Ok, I edited eating cells to killer cells, before you replied. Because with a quick look on english and german wikipedia, I found a bit contradicting information. Anyway, my first post was more right as the macrophage cells are indeed a first line of the defense and killer cells come later (ca. 3 days).

So .. I leave this debate to more knowing persons.

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Re:Coronavirus May ‘Reactivate’ in Cured Patients, Korean CD... by imagine99 on Thursday April 09, 2020 @04:19AM (#22820704)

>macrophage

That's arguably Greek ;-)

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Re:Coronavirus May ‘Reactivate’ in Cured Patients, Korean CD... by teddyh on Thursday April 09, 2020 @04:44AM (#22820813)

The problem with defending the purity of the English language is that English is about as pure as a cribhouse whore. We don't just borrow words; on occasion, English has pursued other languages down alleyways to beat them unconscious and rifle their pockets for new vocabulary.

— James Davis Nicoll

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Re:Coronavirus May ‘Reactivate’ in Cured Patients, Korean CD... by hcknwscommenter on Thursday April 09, 2020 @04:14AM (#22820694)

Not really. THe innate immune system "talks" to the adaptive system. Innate immune cells are often incredibly proficient at displaying antigens to the adaptive immune system and initiating the adaptive immune response.

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Re:Coronavirus May ‘Reactivate’ in Cured Patients, Korean CD... by echelon on Thursday April 09, 2020 @04:36AM (#22820779)

Innate immunity is not going to learn about Covid-19. That adapts on an evolutionary time scale.

We share Toll Like Receptors (TLRs) homology with drosophila. That's how ancient innate immunity is.

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