Do HIPPA rules/laws apply between an employer and his employee? Can  

Keep a watch on all the advertisements for medicines that include all the potential adverse reactions like muscle weakness, paralysis, anaphylaxis, and death. 

What about the adverse reaction of an automobile crash, falling down the stairs, getting mugged, getting COVID and spreading it to others, particularly children?

There is no excuse not to get vaccinated in an ethical sense, just none, unless your physician specifically explains why YOU should not get it.  If so, wear a mask and stay away from crowds unless you want to get it and learn how to breath through a straw, and/or, die.  Is what it is.