There were quite some reports about vaccinated people causing other people to have side-effects.
This occurred often to women who suddenly menstruation problems when working among vaccinated people (like in a hospital).
Example: Nurse warns: stay away from vaxxed people
reddit/u Telescope_Horizon explained how this could happen.
We are still in a clinical trial, called "the vaccination program"
Shedding of the live attenuated vaccine virus is common after receipt of LAIV. In general, shedding is more common among younger recipients, among whom it may also be of longer duration.
H1N1 - https://pubmed.ncbi.nlm.nih.gov/33268518/
2nd paragraph, from the end of March 2021
However, the vaccine trials have not been designed to measure reduction in transmission risk from infected vaccinated individuals to susceptible contacts
Moderna and Pfizer have gone the synthetic substitute/lab created recipe route. The Rotavirus vaccine is the same (shedding wise, also live):
So if you don't have a live virus inside you, but you have a recipe inserted inside you to create the SARS-CoV-2 spike proteins that latch onto the ACE-2, which the antibodies produced have been shown to have cross reactivity with 28 of 55 human tissue sample (aka potential autoummune disorder): https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7873987/ ...then can we really clarify what the difference in a "live virus" and a "synthetic substitute" is (meaning the potential reactions are not studied, and could have similar effects; isn't the body known to push foreign materials out of it?)