Except that it is WRONG and vaccine shedding has just been proven by science!
Even I believed that there was no plausible mechanism for vaccine shedding. I thought that it was a baseless conspiracy theory. Stupid me. It turned out that I WAS WRONG and vaccine shedding is real and can be measured.
A study "Evidence for Aerosol Transfer of SARS-CoV2-specific Humoral Immunity" was just released.
Evaluation of samples in this fashion revealed that high intranasal IgG in vaccinated parents was significantly associated (p-value = 0.01) with a 0.38 increase in the log transformed intranasal IgG gMFIs within a child from the same household (Fig 1F).