Even considering the winding road of scientific advancement and the new expressway that is the internet, what the heck happened in Clark County? With reporting from the ground in Washington and Oregon, we take the fourth episode of our vaccine series to trace the societal pathogens, identify the symptoms, and try to prescribe a solution to what some are calling a “canary in the coal mine” for a near future of eroding herd immunity and increasing threats of outbreak for all kinds of diseases in the U.S.