COVID-19 Reinfection

[Lurker]

At the levels at which you are considered positive for antibodies. Below a certain level, you get a negative result. The CDC has admitted that there is temporary immunity conferred by infection and indicated by presence of antibodies, if I'm not mistaken. At this point, I believe there is nobody who got reinfected without losing their antibodies first.

IINM, antibodies generally drop within weeks or months of any infection, but that doesn't mean you lose immunity to that disease. I don't know that there is a specific level of antibodies at which one can comfortably assume immunity after that initial drop, just because there is no documentation as to where the immunity drops off, so I don't know that continued testing for antibodies has any real value.

[Dan]

I haven't seen that anyone has determined a level at which antibodies are considered high enough to confer immunity.

Lapcorp and Quest tests from Abbott and Roche only give a positive or negative result.

[aygart]

IINM, antibodies generally drop within weeks or months of any infection, but that doesn't mean you lose immunity to that disease. I don't know that there is a specific level of antibodies at which one can comfortably assume immunity after that initial drop, just because there is no documentation as to where the immunity drops off, so I don't know that continued testing for antibodies has any real value.

As long as the antibody levels are still high enough to create a presumption of immunity the presumtion remains. Your point only makes a difference once they already dropped.

[sguitarist18]

In 1 CH case, the person donated antibodies.  Had new symptoms after a wedding in which people came from out of the NY area.  Tested positive for covid.

Alternate explanation: new symptoms were unrelated illness; and testing positive for COVID, we already know can continue to occur for months, even if individual is no longer contagious.

What would be interesting if we could test whether that individual was contagious.

[Lurker]

As long as the antibody levels are still high enough to create a presumption of immunity the presumtion remains. Your point only makes a difference once they already dropped.

Lapcorp and Quest tests from Abbott and Roche only give a positive or negative result.

IIRC, when one of the NY frum doctors put out a post about rapidly dropping antibodies, concern was disregarded because it is SOP for antibodies to fall to undetectable levels soon after infection, but that immunity continued for 'x' amount of time depending on the disease. I think it was explained in a Biobook special. My point is that based on that explanation, most people would fail an antibodies test within a few months of the initial infection, making taking a test every few weeks somewhat futile.

ETA: On this topic, does anyone have any experience taking an antibodies test 4 or 5 months after infection?

[sguitarist18]

https://www.nytimes.com/2020/08/16/health/coronavirus-immunity-antibodies.html

[Euclid]

https://twitter.com/hasidic_1/status/1298007166302003200

[yaakov35]

https://twitter.com/hasidic_1/status/1298007166302003200

He's on his first round of covid.

[Euclid]

He's on his first round of covid.

For so long? Wow.

[yaakov35]

For so long? Wow.

Huh? He just got it.

[Euclid]

Huh? He just got it.

Ah I misunderstood פריער. Thought that meant a long time ago.

[yaakov35]

Ah I misunderstood פריער. Thought that meant a long time ago.

It means earlier, can mean long time ago but in this case it means earlier in the day. It says he got it last week and went to hospital earlier today.

[Euclid]

It means earlier, can mean long time ago but in this case it means earlier in the day. It says he got it last week and went to hospital earlier today.

Gotcha. Thanks for clarifying.

[cgr]

Had an interesting (although I guess to be expected) story over the last two weeks.

I was experiencing upper respiratory symptoms- mild compared to my coronavirus experience- but was especially worried because I'd spent time with my grandfathers over the weekend, one who's well into his 80s. I first went to the local urgent care for a covid test and the doc tells me it's most likely pneumonia because he doesn't believe that covid reinfection is possible- this is a Brooklyn urgent care so this doc likely handled hundreds of covid patients.

Fast forward a week and I'm showing no signs of improvement so I schedule an appointment with my GP and he runs through all the tests and when he gets to the covid one I tell him that I already had covid he launches into this whole "you don't understand covid speech" (he's a great doc- always explains every medical piece he's read relating to whatevers bothering me) basically he says that since I had covid over 3 months ago and close to 6 months ago (the Russians are of one opinion the English of another- don't remember which is which) I should consider a covid test null and void within 24 hours of taking it, since in his opinion I'm ripe for reinfection just as much as anyone who's never had it.

Oh an bh I'm all better now and no, it wasn't covid.

[yaakov35]

https://twitter.com/hasidic_1/status/1298007166302003200

And he tested negative for covid. Its the flu

[Euclid]

And he tested negative for covid. Its the flu

Bh. Thanks for sharing.

[Euclid]

https://www.reuters.com/article/us-health-coronavirus-netherlands-reinfe-idUSKBN25L0LF

[hllulbh1]

And he tested negative for covid. Its the flu

How do you know this? This Chilu Posen of mezamrim. He sent me a text on Thursday last week that he tested positive for carona. Heard he was doing a bit better yesterday but needs our tefillos for a refua sheleima

[aygart]

How do you know this? This Chilu Posen of mezamrim. He sent me a text on Thursday last week that he tested positive for carona. Heard he was doing a bit better yesterday but needs our tefillos for a refua sheleima

That's what's going around on whatsapp

So then it must be true.....

[yaakov35]

How do you know this? This Chilu Posen of mezamrim. He sent me a text on Thursday last week that he tested positive for carona. Heard he was doing a bit better yesterday but needs our tefillos for a refua sheleima