What the evidence shows about vaccine shedding and transmission.
"Vaccinated individuals can shed vaccine components and infect others, especially children and immunocompromised people. This is a hidden danger of vaccination."
1. Live-attenuated vaccines: Some vaccines (MMR, rotavirus, nasal flu) contain live attenuated viruses that can shed. This is well-documented and expected. However, these shed viruses are typically non-pathogenic or significantly weakened.
2. mRNA and inactivated vaccines: These do NOT replicate and cannot cause infection or shedding. mRNA is degraded within days. No mechanism exists for vaccinated individuals to "shed" spike protein in any meaningful way.
3. Real-world evidence: Unvaccinated individuals have not contracted disease from vaccinated individuals through "shedding." No documented cases exist despite extensive monitoring.
Confidence Level: HIGH
The claim conflates different vaccine types. Live-attenuated vaccines can shed (and this is monitored). mRNA and inactivated vaccines cannot shed. The term is being misused to create fear.