Embarrassing Confession time. When I went to my small nursing school, my instructors were against vaccinations, touting most of the crap misinformation. When I got out, I started nursing, and that's when there was that whole measles thing, and the facility I worked for, plus the local hospital were supposed to vaxx the staff. The director of nursing put us all down as "trying to conceive" because then we wouldn't get a "pointlessly dangerous vaccine". She assured us the head of the hospital nursing staff had only vaxx'd two nurses because it was a terrible idea.
That meant that myself, and most of the nurses in my local area learned from the top down that vaccinations were bad. I have to say I spread this crap misinformation during my career as well. This culture permeated the health care facilities I worked in. I find it no shock that Washington state has such a huge resurgence of whooping cough
It wasn't until I stopped nursing, and started really getting into the science behind it, that I was embarrassed to learn how wrong I, and my instructors, and bosses, were. This is why this anti vaxx crap keeps going. It's everywhere, even amongst health care workers.