Measles outbreaks create a lot of fear (and frustration) in people.
That is, in part, because measles 1) is extremely contagious - one person will spread it to 90% of non-immunized people that they contact 2) can spread quickly in a population that is under-vaccinated 3) can lead to long-term health complications and/or death 4) is completely preventable due to an effective vaccine.
People suffering from measles seems ridiculous, given that the United States declared that measles was eliminated in 2000.
However, falling vaccination rates in the United States have caused several recent outbreaks. In 2015, a nationwide spread that originated at the Disneyland Resort Theme Parks in California led to 147 cases. From these, there was one reported death - the first...