COVID-19 survivors may possess wide-ranging resistance to the disease
I don’t think this has been posted before.
Recovered COVID-19 patients retain broad and effective longer-term immunity to the disease, suggests a recent Emory University study, which is the most comprehensive of its kind so far. …The longitudinal study, published recently on Cell Reports Medicine, looked at 254 patients with mostly mild to moderate symptoms of SARS-CoV-2 infection over a period for more than eight months (250 days) and found that their immune response to the virus remained durable and strong.
Emory Vaccine Center director Rafi Ahmed, PhD, and a lead author on the paper, says the findings are reassuring….
…not only did the immune response increase with disease severity, but also with each decade of age regardless of disease severity, suggesting that there are additional unknown factors influencing age-related differences in COVID-19 responses. …
“We saw that antibody responses, especially IgG antibodies, were not only durable in the vast majority of patients but decayed at a slower rate than previously estimated, which suggests that patients are generating longer-lived plasma cells that can neutralize the SARS-CoV-2 spike protein.”
…investigators were surprised to see that convalescent participants also displayed increased immunity against common human coronaviruses as well as SARS-CoV-1, … patients who survived COVID-19 are likely to also possess protective immunity even against SARS-CoV-2 variants.
Here is another study showing the same thing. (I’m collecting them).
“Longitudinal analysis shows durable and broad immune memory after SARS-CoV-2 infection with persisting antibody responses and memory B and T cells”
–Most recovered COVID-19 patients mount broad, durable immunity after infection
–Neutralizing antibodies show a bi-phasic decay with half-lives >200 days
–Spike IgG+ memory B cells increase and persist post-infection
–Durable polyfunctional CD4 and CD8 T cells recognize distinct viral epitope regions
Thank you!!! I am collecting these too. I had covid early in late January 2020 and my antibodies lasted for 10 months. I was pretty sick for four days with cough, chills, fatigue and aches. I had tender feeling lungs and lingering cough for three months and then it cleared. I recently took the T-Detect test owned by Microsoft. The test showed I didn’t have T cells. But, over the past year and a half, I have been exposed to covid numerous times…the two biggest exposures being my husband recently a few months ago and my daughter had it last Thanksgiving. I took care of both of them with no mask. I did not develop covid again and feel I have really strong immunity. I don’t know if I trust the T-Detect test. Just wanted to share in case others end up finding out the same result. I think immunity is maybe way more complicated than just antibodies, T cells and B cells.