The cellular immune responses in the form of memory B cells and memory T cells seen in most vaccinated people would mean that the immune system can respond swiftly and provide protection in case of a breakthrough infection. “The study finds that both B cells and T cells develop well after Covaxin administration. Memory B cellsThe study has measured the RBD-specific memory B cells but not the spike-specific memory B cells. “We did not measure the spike-specific memory B cells for this study. The levels of spike-specific memory B cells may not be very different from the RBD-specific memory B cells but this has to be studied,” Dr. Nimesh Gupta from NII and the corresponding author of the preprint says in an email.

Source: The Hindu November 27, 2021 16:49 UTC