SPOKANE, Wash. (AP) — The highest rate of coronavirus cases of any county on the U.S. West Coast is in Washington state’s Yakima County. As of Friday, Yakima County had 1,128 positive cases, a rate of 455 cases per 100,000 residents. Health experts point to a large number of essential workers, a large number of cases in long-term care facilities and a large agricultural workforce living and working in close quarters as the causes. Yakima County, 140 miles (225 kilometres) southeast of Seattle, also had a relatively high number of deaths from coronavirus with 47. The county has about 250,000 residents.