The data on booster is still evolving, most however believe that a booster may not be required in everyone. The immunology underlying this is the fact that vaccinated individuals have both a B-cell antibody response which most of the studies focus on and a T-cell cellular immune response which is less talked about. In addition there are memory B-cells that remain long after vaccine administration. In SARS-CoV-2 infection in vaccinated individuals the memory cells may not be effective in protecting individuals who have baseline immunodeficiencies and those older than 65 years who may progress faster into cytokine storm before they can mount an immune response against the virus.
Vaccinated individuals with good immune systems may be able to mount broader cross strain immune responses and may not really need booster. Most of this information is mostly theoretical and partly based on research on individuals who received mRNA vaccines. The information is still evolving. At this time for most fully vaccinated healthy individuals younger than 60 years individuals even with high likelihood of exposure may be fine without boosters.
Goel, Rishi R., et al. "mRNA Vaccination Induces Durable Immune Memory to SARS-CoV-2 with Continued Evolution to Variants of Concern." bioRxiv (2021). research not peer reviewed.------------------------------
Leonard Sowah
Baltimore MD
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Original Message:
Sent: 09-06-2021 13:49
From: Amber Siegel
Subject: Vaccine booster
Wondering what everyone's or anyone's thoughts are regarding the SARS COV-2 booster. I am all about offering them to my patients who are sex workers, or IVDU. In my opinion they are at a heightened risk of exposure to the delta variant despite whether or not there is an underlying co-morbidity. Just to put things in a better perspective, I am in central Florida, where a lot is going on right now. What are your thoughts, if any? The FDA now recommends that one can receive the 3rd booster of Pfizer or Moderna 28 days after their 2nd dose if …
Thanks,
Amber
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Amber Siegel DNP AGNP-C AAHIVS
Crew Healthcare
Orlando, Florida
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