I've heard that a lot of kids are getting whooping cough now because of a combination of adults not getting boosters since childhood, and the new whooping cough vaccination being not very effective so a lot of vaccinated kids still are susceptible. Not sure how true that is but it's in my head as the reason for the upsurge in new cases in children. Perhaps someone with more knowledge can confirm or deny this?
I was in the childrens hospital yesterday and they were giving all the staff...volunteer or paid a free pertussis booster to try and create some heard immunity among the adults because adults can be unaware what they have is whopping cough and can pass it on to children.