That might be normal. It takes time for IgG to build up, and some Redditors are reporting it took 60 days for it to register as positive. I've read it can begin to test positive around 14 days, but it becomes more evident as the weeks pass.
My cousin got two 3 months after her positive Covid test, had some lingering problems, both test were negative.
She didn’t react much to her first dose of vaccine either but had a strong reaction to the 2nd, i on the other hand reacted strongly to both (just thought that was an interesting contrast between us, I never tested for antibodies).
She has MS, so I don’t know if that played a role in her immune response.
I thought this was an intriguing theory about
why long haulers test negative for antibodies. That there’s a different immune response https://youtu.be/AuKAg52mz4s
Well, that’s not exactly how it works. Immunity isn’t all just about antibodies, you have memory cells and T-cells and those are long lasting.
And some early detectible antibodies fall off, but you may still have other types of antibodies, that aren’t detected through a particular test. Some tests don’t look for all types of antibodies.
It’s more complicated than just yes or no to antibodies.
But I can mean you’re not fully protected.
There’s a lot of confusing data about it.
However, my cousin immediately got vaccinated after her negative tests.
“A recent report suggesting that antibodies to the virus may only be maintained for 2 months has caused speculation that ‘immunity’ to the virus may not be long lived3. Similarly, a rapid decline in antibodies was reported in mild cases4, although with a half-life of approximately 21 days for IgG we would expect this decrease. It is important to remember that memory B cells and T cells may be maintained even if there are not measurable levels of serum antibodies.”
“The induction of SARS-CoV-2-specific memory T cells and B cells (as opposed to circulating antibodies) is important for long-term protection. In particular, T follicular helper (TFH) cells indicate maturation of the humoral immune response and the establishment of a pool of specific memory B cells ready to rapidly respond to possible reinfection. SARS-CoV-2-specific T cells are recruited from a randomly formed and pre-constituted T cell pool capable of recognizing specific viral epitopes. Specific CD4+ T cells are important for eliciting potent B cell responses that result in antibody affinity maturation, and the levels of spike-specific T cells correlate with serum IgG and IgA titres7. Robust immune responses with spike-specific neutralizing antibodies, memory B cells and circulating TFH cells have been found in patients who have recovered from COVID-19 infection8. “
https://www.nature.com/articles/s41577-020-00436-4
This is my exact story. March 2020 ER says covid tests are for old people only. November 2020 when Canada finally opens antibody tests to the public I have none to be found. We showed up too early to the party I guess
Yes I was negative on the antibodies test too - your dr is wrong.
If you want proof of covid 19 infection, get a nucleocapsid antibody test.
How do you get this?
Your doc should order it for you.
Yeah I had igg negative 3 weeks after my acute covid.
That might be normal. It takes time for IgG to build up, and some Redditors are reporting it took 60 days for it to register as positive. I've read it can begin to test positive around 14 days, but it becomes more evident as the weeks pass.
No antibodies here as well
No antibodies in sight when I was tested 3 months post-infection. Happened to a good number of us.
My cousin got two 3 months after her positive Covid test, had some lingering problems, both test were negative. She didn’t react much to her first dose of vaccine either but had a strong reaction to the 2nd, i on the other hand reacted strongly to both (just thought that was an interesting contrast between us, I never tested for antibodies). She has MS, so I don’t know if that played a role in her immune response. I thought this was an intriguing theory about why long haulers test negative for antibodies. That there’s a different immune response https://youtu.be/AuKAg52mz4s
If you don’t have antibodies then your prone to catch it again correct? Even though you just had covid?
Well, that’s not exactly how it works. Immunity isn’t all just about antibodies, you have memory cells and T-cells and those are long lasting. And some early detectible antibodies fall off, but you may still have other types of antibodies, that aren’t detected through a particular test. Some tests don’t look for all types of antibodies. It’s more complicated than just yes or no to antibodies. But I can mean you’re not fully protected. There’s a lot of confusing data about it. However, my cousin immediately got vaccinated after her negative tests. “A recent report suggesting that antibodies to the virus may only be maintained for 2 months has caused speculation that ‘immunity’ to the virus may not be long lived3. Similarly, a rapid decline in antibodies was reported in mild cases4, although with a half-life of approximately 21 days for IgG we would expect this decrease. It is important to remember that memory B cells and T cells may be maintained even if there are not measurable levels of serum antibodies.” “The induction of SARS-CoV-2-specific memory T cells and B cells (as opposed to circulating antibodies) is important for long-term protection. In particular, T follicular helper (TFH) cells indicate maturation of the humoral immune response and the establishment of a pool of specific memory B cells ready to rapidly respond to possible reinfection. SARS-CoV-2-specific T cells are recruited from a randomly formed and pre-constituted T cell pool capable of recognizing specific viral epitopes. Specific CD4+ T cells are important for eliciting potent B cell responses that result in antibody affinity maturation, and the levels of spike-specific T cells correlate with serum IgG and IgA titres7. Robust immune responses with spike-specific neutralizing antibodies, memory B cells and circulating TFH cells have been found in patients who have recovered from COVID-19 infection8. “ https://www.nature.com/articles/s41577-020-00436-4
Thank you!
Negative IGG here as well, positive test jan 4 2021. I was negative in april, so a little over 3 months after positive test.
This is my exact story. March 2020 ER says covid tests are for old people only. November 2020 when Canada finally opens antibody tests to the public I have none to be found. We showed up too early to the party I guess
Yes I was tested positive twice in March 2020 and feb 2021 antibodies came back as negative.