Protected?

Ahh…  my sore arm and slightly achy body tell me that the flu shot that I got yesterday afternoon is kicking in.  So lets take bets… do I get the flu this year - - or not? 
Btw - big kudos to health insurance covering 100% of preventative care.  Walk in - hand over insurance card - wait 20ish mins - 90 second visit with random-person-in-scrubs-#2 for a stick in the arm - walk out without any payment.  Mmmm… health insurance.