Heard news that the COVID-19 vaccines may last “forever”? It’s because a study came out yesterday (accelerated preview) taking the first look at directly measuring markers of long-term immunity (from the Pfizer mRNA vaccine) in the form of Germinal Center B-cells (GCB-cells).
Ultimately, they found promising levels of GCB-cells all the way out at 12 weeks post-second dose. Based on our understanding of GCB-longevity and comparison with other vaccines (ie. Influenza), this suggests that the immunity may last a substantial length of time. How long? There is no way to know for sure at this time, but the study data is all good news!
Posted on Instagram on June 29, 2021.