Schmickers said a while ago when the last outbreak happened that where he lives they have the highest rate of vaccination, but they also had the highest number of whooping cough cases in children, so you do the math. Vaccination isn't a 100% guarantee that your child is protected. But you would know if it were that. It sounds more like it's just her asthma playing up because being spring there is a lot of pollen and dust around atm.