The Grant County Health District reports 18 more confirmed coronavirus cases on Friday with the total at 405. Friday’s cases come from Ephrata, Mattawa, Moses Lake, Quincy and Royal City. The district continues to investigate how these individuals contracted COVID-19. The health district also released data on the number of people diagnosed with COVID-19 by employment sector. Agriculture and ag support has the most cases at 119, with retired orunemployed at 113.