I do know how easy it is to get waivers. I had a school tell me I had 5 days to get my child a vaccine, but our doctor couldn't see them for 2 weeks, so I signed a waiver. But they got the vaccine 2 weeks later.
As for Typhiod Mary, we just had it at
Disneyland.
AND because most people are vaccinated, the problem isn't nearly as bad as it could have been. Measles are exceptionally contagious. 90% of unvax people who cross the path of the contagion will contract the disease. The measles germ lives outside the body very easily. It will remain airborn for 2-3 hours and lives on surfaces 3-4 hours. I am sure patient X visited a large area of the park, spreading the germs. Most likely they thought they had a cold (which is how it presents the first 4 days while contagious.) And while they were there, DIsneyland had an attendance of at least 80,000 people. The fact that the count is only at 26 is awesome. It means most people ARE getting vaccinated. Only 1 person was vaccinated that got it, 2 others were only partially vaxed. This is actually pretty good news.
When I contracted measles back in 1967, they closed the school to prevent it from spreading. (21 of 30 in my class got it pre vaccination dates.)