The durability of immune memory after SARS-CoV-2 mRNA vaccination remains unclear. Here, we longitudinally profiled vaccine responses in SARS-CoV-2 naïve and recovered individuals for 6 months after vaccination. Antibodies declined from peak levels but remained detectable in most subjects at 6 months. We found mRNA vaccines generated functional memory B cells that increased from 3-6 months post-vaccination, with the majority of these cells cross-binding the Alpha, Beta, and Delta variants. mRNA vaccination further induced antigen-specific CD4+ and CD8+ T cells, and early CD4+ T cell responses correlated with long-term humoral immunity. Recall responses to vaccination in individuals with pre-existing immunity primarily increased antibody levels without substantially altering antibody decay rates.
Together, these findings demonstrate robust cellular immune memory to SARS-CoV-2 and variants for at least 6 months after mRNA vaccination.
www.science.org
I read it but did not find it convincing.
For example:
{...
Immunological studies of SARS-CoV-2 infection show that memory B and T cell responses appear to persist for at least 8 months post-symptom onset (
28,
29). However, the durability of these populations of memory B and T cells following vaccination remains poorly understood.
...}
If the person is getting boosters every 3 months, and that temporarily stimulated antibody production, then that would not indicate T-cell or B-cell memory at all.
The shortest T-cell memory I know of is from Pertussis, which is still at least over 3 years.
So when someone is referring to 8 months, that does not fit any T-cell memory I am familiar with.
Normally you measure T-cell memory in decades, not months or years even.
The problem I have is that I do not know what T-cells store, but I do not think those designing these mRNA injections know much more than I do.
And since these mRNA injections have nothing the immune system can trigger on, I don't see how they could possibly work?
They are claiming the lack of success is due to variants, but the variants have identical spike proteins, so the immune response should still be identical.
I think they are just deliberately pulling a fraud.
The high rate of reinfection, the % vaccinated having no effect on surges, and the ease with which re-infections spreads, implies all these mRNA injections do is temporarily stimulate a therapeutic antibody response.
Which is not at all remotely like a vaccine.
Examine the claim that the loss of effectiveness was due to variants.
Well then how come boosters are being recommended and they seem to help?
Since the boosters are identical to the original mRNA injection, they can not have any greater means of identifying the variants than the original shot.
So then that indicates actual identification was never a factor or capability.
All they are doing is temporarily stimulating antibody production.