they're the type of tourists that think they can visit all the major US cities in a weekend.

Oh, they are. If they believe that measles is "spreading quickly" because they heard of an outbreak in one blue urban hellscape they definitely think it'll be in the rest of the country because everyone goes to said hellscape for work, where else could you? These types never understand how big the US is and are so gleefully ignorant of it as to make memes trying to mock us for pointing it out as if it's not true.