"Whooping cough epidemic declared in Wash. state:" This could be a headline from the 1930s, but instead it's from May of 2012. Whooping cough (or pertussis) is a highly contagious disease that used to cause thousands of deaths per year--mostly in infants. With the development of the pertussis vaccine in the 1940s, whooping cough was largely eradicated in this country.
Why is there an epidemic of the disease in Washington then?
Washington has the highest school exemption rate from vaccinations in the country (6.2%). And, now, Washington is dealing with a pertussis epidemic.
Why does Washington have the highest vaccination exemption rate in the country and now a whooping cough epidemic? Because of the sad fact that myth often has the power to defeat logic and fact, that's why . . . .