Given that it may be related to an immune priming effect, if adopting this strategy, potential recipients must be tested for antibodies (as a result of natural

Given that it may be related to an immune priming effect, if adopting this strategy, potential recipients must be tested for antibodies (as a result of natural infection) prior. As andecdata, I had pretty severe cytokine release / flulike syndrome after the first dose of Moderna (and I likely had a prior infection early in 2020; should have had antibody testing before getting vaccinated), whereas most describe this reaction after the second dose.