OLYMPIA, Wash. (Metro) -- Over 3000 cases of whooping cough have been diagnosed in Washington state so far this year, according to data from the State Department of Health. Two-hundred-nineteen cases of the disease also known as pertussis were diagnosed in the same period last year. KING 5 News reports Officials of the Centers for Disease Control and the Washington Department of Health will release more details about the state's epidemic at a 9 a.m. briefing today. They will also provide more information on prevention resources. Copyright © 2012 Metro Networks Inc.