Here's some information I found regarding bleach solution for disinfecting.
For disinfecting areas contaminated by blood, feces, vomit, and urine, as well as, environmental disinfecting during outbreaks. For disinfecting a diaper change table, counter tops, general disinfecting and disinfecting toys, use 5 ml (1 teaspoon) of bleach with 495 ml (2 cups) of water.
For disinfecting areas contaminated by blood, feces, vomit, and urine, as well as, environmental disinfecting during outbreaks, use 50 ml (1/4 cup) of bleach mixed with 450 ml (2 1/4 cups) of water.