The Clark County Public Health Department says it has the highest rate of whooping cough in Washington state. Read the full story here: https://www.kgw.com/article/news/health/whooping-cough-chickenpox-clark-county/283-27fb0d6b-b694-4767-9289-1f3294bf4a59 Subscribe: https://www.youtube.com/c/KGWNews8 Watch the latest KGW newscast: https://www.kgw.com/watch Get the KGW app: https://kgw.com/appredirect