They are for sale on the Internet. The breeder is in the USA, having at least one pair of healthy well functioning iguana parents. The babies nor the parents have never been exposed to the germ/parasite ridden Central American habitat. But all the pet store iguanas have been because that's where they hatched.
I'm pretty sure the hatching season is coming up, sometime in Spring or early summer.
Go to Kingsnake.com to find your breeders announcements. You will save a lot of big vet bills if you do that.