Vaccine shedding is the phenomenon of a (recently) vaccinated person shedding ‘something’ related to vaccination (e.g. spike proteins, antibodies, exosomes, mRNA) that could be transferred to and might impact close contacts.
Although it sounds far-fetched, FDA actually has a whole document from 2015 titled ‘Design and Analysis of Shedding Studies for Virus or Bacteria-Based Gene Therapy and Oncolytic Products’. It says:
“The Center for Biologics Evaluation and Research (CBER)/Office of Cellular, Tissue, and Gene Therapies (OCTGT) is issuing this guidance to provide you, sponsors of virus or bacteria-based gene therapy products (VBGT products)1 and oncolytic viruses or bacteria (oncolytic products) with recommendations on how to conduct shedding studies during preclinical and clinical development. For purposes of this guidance, the term “shedding” means release of VBGT or oncolytic products from the patient through one or all of the following ways: excreta (feces); secreta (urine, saliva, nasopharyngeal fluids etc.); or through the skin (pustules, sores, wounds).”
The above was taken from the following Rumble channel: frankploegman