- Note: “B” represents PRV (B), “K" represents PRV (K). Yellow indicates that PK-15 cells were killed by the disinfectant solution and could not be evaluated; green indicates that the cells survived after PK-15 cells were inoculated and there was no PRV cytopathy; red indicates that PRV cytopathy appeared after PK-15 cells were inoculated. SDIC: sodium dichloroisocyanurate; SDS: sodium dodecyl sulfonate