Company mandated vaccines.
I don’t know of anyone who had been asked for “proof of vaccination” at a certain company, for a regular FLU shot. The company required the flu shot for people going to the job site. Flu, not COVID. Getting it was on the honor system.
OSHA has decreed that if a company mandates the jab as a condition of employment, then any and all reactions to the jab are workplace-related injuries.
Any company which hears about this, flees in terror from these mandatory experimental gene therapy jabs.