Yes, vaccinations are not 100% with whooping cough but nerd immunity would help more.
What is this nerd immunity you speak of?
ETA: I hadn't heard that the DTaP vaccine was only 50% effective with whooping cough. That seems awfully low. The variation of the vaccine administered after 2000 does wear off though, and wears off earlier than they originally thought. I guess they are looking at adding more boosters or making adjustments to the vaccine.
Vaccinations only work if everyone else around you is vaccinated. ;p I would punch him in the groin repeatedly.
+1
How about my boss who shares her office with my coworker...the one who's been battling cancer the past year, going through chemo & radiation therapy? Who already has a severely compromised immune system? Yeah, how about her coming in to work with a severe headcold because she doesn't "think" she's contagious anymore...so coworker has to wear a facemask.