Dilution No. of plaque (Y)  N=Y/VX (pfu/ml) Mean (pfu/ml) Mean (pfu/ml)
Plate -1 Plate -2 Plate -3
10-1 Uncountable Uncountable Uncountable - - -
10-2 Uncountable Uncountable Uncountable - - -
10-3 Uncountable Uncountable Uncountable - - -
10-4 Uncountable Uncountable Uncountable - - -
10-5 Uncountable Uncountable Uncountable - - -
10-6 Uncountable Uncountable Uncountable - - -
10-7 Uncountable Uncountable Uncountable      
10-8 Uncountable 293 421 714 x 108 7.14 x 1010   8.5 x 1011
10-9 467 351 259 718 x 109 72 x 1010
10-10 33 102 48 121 x 1010 121 x 1010
10-11 0 16 6 14 x 1011 140 x 1010
10-12 0 0 0 -    
10-13 0 0 0 -    
10-14 0 0 0 -    
Table 3: pfu for ADB-2.