I got an email from one of our teachers that all 3 of her daughters, despite vaccination, have pertussis and were in school during the contagious phase. I was pouring over CDC site last night and see that the real threat is to newborns and pregnant women. It appears that the rate of non-immunity post vaccine is highest for pertussis and the anti-vac crowd have increased the risk over the last few years. My Principal wanted to know if a notice should be sent to parents and my initial response was no, as the threat is the same in the community as at school, and unvaccinated kids should have the attitude that their kids are possibly going to come down with one of these things anyway. Looking at risk, there is more possibility of valvular disease from strep throat than complications from pertussis. Has anyone dealt with this and if so, how did you handle it? Thanks once again for your insight.