Hi Dr. Bob,
My daughter is 15 months old and I have decided to hold off on vaccinations. I did allow her to get one Dtap shot when she was five months old. I was wondering if she has any protection from Whooping cough from this one shot? We have had an outbreak where I live and I'm very concerned. FYI - My entire family has been vaccinated for it (grandparents,aunts & uncles) and we never bring her to crowded places - ever. If she did get it - how bad would it be at her age? Thank you very much.