The fact is that you can't kill a virus... Most vaccines just mask the symptoms by boosting person's own defense system, but don't actually kill or block the virus infection. You still get some of the symptoms but they are a lot weaker if it is same or compatible mutation of the virus.
Only bacterial infections can be cured permanently.
This is good info... If it is true that viruses are not actually killed, then clearly the world stand a better chance at moving on from this if we become more discipline. Follow prevention rules such as distancing and use of masks
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A lot of viruses hide in central nervous system when "dormant" and then resurface after few years or when immune system is weaker than normal.
This is possible because human immune system is largely based on activity of white blood cells and there is no blood cells in nervous system.
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Thanks for the explanation @mtl1979. I think though that you have a deep knowledge of biology.
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I never liked reading children's books when I was little, instead I did read technical manuals, phone books, encyclopedias etc...
I still have the same 24 part encyclopedia I did read when I was a child even though most of the data is already outdated... It was made in 1960s ;)
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