2) Western vaccines are resisted by hippie Californians who fear Measles vaccines are a Western pharmaceutical plot to spread autism.
3) Disneyland is a great opportunity for the disease to spread between members of these regions.
Let's see if Jenny McCarthy is forcefully vaccinated. Until then, it will be hard for me to take your "They aren't the same people as us, so let's use brute force, for humanity" attitude seriously.