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Ask HN: Why don't we just stop Covid by
4 points by universe42 51 days ago | hide | past | favorite | 5 comments
creating our own mutation that is highly contagious and extremely dominant. But harmless to humans...

Our science is not that good.

Basically you want a virus that really is a vaccine. The current vaccines are far from perfect because apparently we don't know how to make them better. Expressing such a vaccine as a contagious virus would not better but would only create more risks.

I agree, but there is also a risk of mutations of the new virus. I'll copy one of my comments in a similar question:

Using "live" virus is a problem. For example there are two versions of the polio vaccine. The injectable uses inactivated ("dead") virus, and the oral uses weakened("live") virus.

Both are safe, but in the oral one the virus can go to another person and cause no problems, and then to another and cause no problems, and after like a year jumping hosts it can mutate and become dangerous. Now most of the the polio cases are caused by virus that mutated from the version of the vaccine. https://en.wikipedia.org/wiki/Polio_vaccine#Vaccine-induced_...

The number is much smaller that the number of cases before the vaccine, but it's concerning anyway. So they are trying to discontinue the use of the vaccine with the weakened virus, but the it's better when most of the population is not vaccinated. https://en.wikipedia.org/wiki/Polio_vaccine#Schedule

So ... probably the authorization and test necessaries to use a new vaccine with and attenuated virus are more difficult than a vaccine with an inactivated virus (or a vector virus, of mRNA, that also can't spread).

Wasn’t that kind of meddling what got us here in the first place?

Helps to be fully vaccinated and ensure vitamin D is optimum. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7973108/

I believe, but opinions vary wildly, that doing experiments with variations of naturally occurring virii (to try to head off a future threat) is what got us into this mess in the first place.

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