The Washington Health State Department shot down speculation that Clark County’s measles outbreak has a confirmed “patient zero” on Wednesday.As the county’s confirmed measles cases rose to 51, along with 13 suspected cases, and two new exposure dates, Julie Graham, a public information officer with the state health department, said that “patient zero” is not a term the department even uses. Some media outlets have reported “patient zero” was from another country. Graham said those reports are inaccurate.“The concept of patient zero was a term that someone coined that doesn’t have any scientific meaning for us,” she said. On Wednesday, there were three medical facilities named as exposure locations. Two of those facilities also added more exposure dates and times, according to Thursday’s Clark County Public Health news release:–The Vancouver Clinic Salmon Creek, 2525 N.E. 139th St., Vancouver from 2:50 to 6 p.m. Feb. 4.