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Table 4 Summaries of the sequence variability and Simpson’s index of the three CPV-2 antigenic variants

From: Molecular epidemiology of canine parvovirus type 2 in Italy from 1994 to 2017: recurrence of the CPV-2b variant

 

No. of sequences

Total no. of sites

S

η

π

s

a

a/η

k

D

CPV-2a

56

1745

53

55

0.00251 SD 0.00019

42

13

0.23636

4.384

0.02403

CPV-2b

18

1745

16

16

0.00227 SD 0.00061

11

5

0.3125

3.961

0.37255

CPV-2c

49

1745

26

26

0.00132 SD 0.00013

23

3

0.11538

2.301

0.08078

Tot.

123

1745

81

83

0.00329 SD 0.00012

63

20

0.24096

5.747

0.02519

  1. a: total number of non-synonymous differences. a/η: total number of non-synonymous differences on the total number of mutations. CPV-2: canine parvovirus type 2. D: Simpson’s index. k: average number of nucleotide differences. η: total number of mutations. π: nucleotide diversity (average number of nucleotide differences per site) and standard deviation. s: total number of synonymous differences. S: number of polymorphic (segregating) sites