"Are you actually worried that your son will be the first person in the United States since 1979 to have wild polio? Or the first person since 2000 to have polio related to the oral vaccine?"
Not so much worried about polio from the oral vaccine, if the girl got the OPV it was probably quite a while ago, moreso worried that somehow he'll be the first person in the U.S.??? I guess it sounds ridiculous. But I'm surprised it hasn't happened yet w/the number of ppl who probably travel to India and places where it's more common than that with only the IPV.
i.e., the girl had a poopy diaper during the playgroup, mom changed her and brought her back, and DS continued to play w/her and mouth the same toys, etc. I know DS loves to stick his hands in his dirty diapers while I'm changing him. So, basically that's how I'm afraid it could happen.