@TheMadPirate
Mostly because the virus went through a few mutations since then.

@alyx Doesn’t people become more resistant to variants of a virus in time when they develop natural immunity ?. You know, like influenza’s seasonal variants.

@TheMadPirate
Not necessarily, depends a lot on the mutations themselves. The real problem though is only a small percentage of the population had the actual disease, and developed natural immunity. And even for those, we already know that antibody number go down in time. In any case, relying on people developing natural immunity could translate to the pandemic lasting decades.

@alyx
>>The real problem though is only a small percentage of the population had the actual disease, and developed natural immunity.
So there is no even an epidemic? So what's matter?

>>And even for those, we already know that antibody number go down in time.
And it's absolutely normal. When antibodies have nothing to do, our body gets rid of them and low or even zero antibody number doesn't mean that @TheMadPirate - 1/2

immunity has ceased: human body will generate antibodies when it come across the virus again. Moreover keeping antibody number high permanently (using booster shots) is highly dangerous and in a long run can lead to autoimmune deseases or even cancer.
@TheMadPirate @alyx - 2/2

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@VikingKong @TheMadPirate
>doesn't mean that immunity has ceased
Yes, actually that's exactly what it means. Sorry, I don't talk to complete and utter morons. Goodbye.

@alyx the immune system still remembers previous infections even though it despecializes the antibody cells for things it doesn't think its likely to encounter again. There's reasons for it; some diseases hit you worse otherwise (ADE) and you inky have so much capacity for specialized antibodies.

Losing the antibodies has a short term appearance as immunity loss but there are people known to have survived previous SARS episodes and the t cell memory or whatever its called this week started manufacturing antibodies faster than people who hadn't.

Its actually not possible to vaccinate every illness because those are sold on keeping the cells specialized with adjuvants and they actually need to be flexible.
@VikingKong @TheMadPirate
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