Please enter the experimental parameters of your assay below. If you change the minimum dilution or maximum dilution, please press the "Update Data Fields" button.

Particle to PFU Ratio
Dilution Factor
Log Dilution (10-fold)
Half Log Dilution (101/2-fold)
Quarter Log Dilution (101/4-fold)
Other Dilution
Minimum Dilution Number
Maximum Dilution Number

For each dilution number, please enter the number of trials and how many of them exhibited a successful cytophathic effect. Press "Solve" for the viral particle count estimate and 95% confidence interval..