5 ms·

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 cas

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.

hutzlibu 7y ago
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.
- frank2 7y ago
  >The big "eating" cells (do not know the proper english name) macrophage
  - imagine99 7y ago
    >macrophage That's arguably Greek ;-)
    - teddyh 7y ago
      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
  - hutzlibu 7y ago
    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.
hcknwscommenter 7y ago
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.
echelon 7y ago
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.

hutzlibu 7y ago

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.

frank2 7y ago
>The big "eating" cells (do not know the proper english name) macrophage
- imagine99 7y ago
  >macrophage That's arguably Greek ;-)
  - teddyh 7y ago
    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
- hutzlibu 7y ago
  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.

hcknwscommenter 7y ago

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.

echelon 7y ago

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.