DEERFIELD, Ill.--(BUSINESS WIRE)--Walgreens continues to offer vaccinations that provide protection against pertussis (whooping cough) at all of its more than 130 pharmacies throughout the state, as the Washington State Department of Health is urging vaccination with the state reaching more than four times the number of reported whooping cough cases compared to the same time last year. Vaccinations are available daily during all pharmacy hours with no appointment necessary and are covered by mo