A lot of people also don’t realize there’s different kinds of flu that the flu shot covers. If you influenza B or C you might feel a bit cruddy and pass that along but be mostly ok over all. If you get influenza A or some other baddie novel version be prepared to be knocked on your ass for days with a fever over 100 feeling like death and infecting anyone in a 30 yard radius. I got flu A once and that’s enough to know I never want to do that again, 103 fever for days and it broke like 12 hours before my doctor said I would need to go to the hospital if it didn’t come down. It’s scary shit