[greedo]

We have no idea how long lived the antibodies we develop in response to SARS-CoV-2 last. And obviously, an initial infection to COVID-19 will generate antibodies that will immunize the patient, as long as the antibodies persist. Don't you think that if this was a foregone conclusion, we'd be able to demonstrate that? Isn't it odd, that with people having been infected and recovered months ago, that no one is saying how long the antibodies persist?

In science, it's incumbent on those making the claim to provide studies and proof. That means you...

And to say that this is unsupported, unsubstantiated is ridiculous, and you know it. It's straight from the WHO's mouth.

[arcticbull]

> It's straight from the WHO's mouth.

Nothing I said contradicts the WHO.

> Don't you think that if this was a foregone conclusion, we'd be able to demonstrate that?

I'm sorry, do we need to re-prove how the immune system works? Why re-demonstrate the utterly obvious?

> Isn't it odd, that with people having been infected and recovered months ago, that no one is saying how long the antibodies persist?

No, because it hasn't been long enough. I'm confident that research is under way.

[djsumdog]

but it would go against everything we know about viruses and our adaptive immune systems. I know there are some vaccines with lower take rates. Hep B requires 3 injections and only has a 60% change of generating antibodies.

But an immune response from an actual virus should last for at least a few years. There are situations where you can get reinfected later in life if you're not exposed or given booster shots (likes Shingles).

Is there evidences that our adaptive immune system only generates short lived antibodies, and for what families of viruses?

[greedo]

https://www.technologyreview.com/2020/04/27/1000569/how-long...

[greedo]

This should be something that can/will be resolved by testing. I find it unusual that no medical authority is going on record as saying there's any long term immunity granted by infection, and that the WHO is being extremely clear in the lack of evidence to support such a conclusion.

[arcticbull]

Greedo, no. haha. They're not on record yet because the tests are under way. Had they found an early failure that shakes the foundations of medical science, they'd have shared it. Especially in this news cycle which overwhelmingly favors negative information.

It's like saying "I find it very strange no scientists came out on record this week with a study showing water remains wet -- does it?! How can we tell if we don't check again."

Lack of proof of an affirmative is not proof of a negative, and especially not when plenty of other evidence points in the direction of the affirmative (again, not conclusively).