Blueberry Shock Virus symptoms timing

Number of years since planting that the plant tests positive for Blueberry shock virus by ELISA assay. Lower values means that the plant succumbs to the virus faster; higher values means that the plant does not test positive for the virus for a longer time. Ultimately categorized into <3 years - rapid to test positive, 3-5 years intermediate to test positive, 5-10 slow to test positive, >10 very slow to test positive. Referenced in Finn, C.E., Mackey, T.A., Postman, J.D. and Martin, R.R. (2017). Identifying blueberry germplasm that is slow to get Blueberry shock virus in the Pacific Northwest United States.