Measles outbreak 2018: Washington declares public health emergency - Vox

An ongoing outbreak of measles — one of the most infectious diseases known to man — in Washington state has prompted the governor to declare a public health emergency. As of Monday, there were 35 cases in Washington’s Clark County, which borders Portland, Oregon. ....

https://www.vox.com/2019/1/27/18199514/measles-outbreak-2018-clark-county-washington