add to the list above .. A healthy person X has a chance to have a flu of about 10% within a season. with a vaccine that person lowered the chance by 50% ! it's a big percentage no doubt about it , but in reality that person X still has a 5% for having a flu! To me antihistamine/Tylenol will relieve most of the hardship, cloves is an amazing natural remedy as well until a solid finding comes up
In our HCA facility, flu shot is mandatory, but if you refuse it, you have to wear a mask anytime you have contact with a patient. Got one every year, no problems.