Table 1 Means of viral inhibition rates measured in fcwf-4 cells after treatment with supernatants derived from stimulated PBMCs of 8 adult cats Depicted are mean viral inhibition rates for 8 cats. Viral inhibition rates for each cat were calculated with the following formula: Mean optical densityODvalues of duplicate wells treated with SupernatantMean OD values of quadruplicate wells treated with medium alone. Abbreviations: VSV Vesicular Stomatitis Virus, FCV Feline Calicivirus, FCoV Feline Coronavirus, FHV Feline Herpesvirus, FPV Feline Parvovirus.