FrecklesDad said:
What do we do next?
I say we have to go back to living as close to normal as possible. Wear masks and practice good hygiene. Quarantine the sick and try not to get sick. What else can we do?
It is not really about whether or not the antibodies will give you immunity. If you have the antibodies at a high enough titer (amount of antibodies in the body) you will have complete immunity to the current version of SARS-CoV-2.
If you have lower titers, you may not have complete immunity, but generally lower antibody titers mean when you do catch the illness again it will be much less intense than it would have been were you completely naieve to the virus.
The issues at hand are really two fold...
1. Will the virus mutate quickly and intensely enough that the virus has changed to where previous antibodies no longer provide immunity to the new version yearly (like the flu)?
2. How long will the antibodies made to SARS-CoV-2 last in the body and keep one immune before they would need a "booster shot" to keep their immunity?
The answer to both are unknown, but all evidence from the histories of similar viruses and lab studies on SARS-CoV-2 which have been trying to determine the stability of the viruses genetic information seem to point to the virus mutating slowly and being relatively stable, (similar to other known coronaviruses).
This means it is highly likely that those who have been infected with the virus (especially those who had a big immune response to it... a.k.a. the sicker patients) and then recovered will likely be immune to this virus.
Now for how long the immunity will last... This is not known either, but it is assumed it will be many, many years as it is with most other "cold" type viruses.
Tldr version:
This virus seems to change slowly and is unlikely to come back in a new version every year like the flu, and it is very likely that if you have this disease and recover you will be immune from it for a long time (several years, maybe decades).
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