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Table 1 Origin and characteristics of the 118 human parvovirus B19 sequences studied

From: Existence of various human parvovirus B19 genotypes in Chinese plasma pools: genotype 1, genotype 3, putative intergenotypic recombinant variants and new genotypes

Manufacture (Location in China)

No. of sequences

Yr(s) of sample collection

No. of samples with genotypes:

Mean genetic distance (%)a

1a

1b

3b

intergenotypic recombinant ones

putative new genotypes

A (Central China)

89

2008–2013

60

6

13

5

5

3.79

B (Northern China)

8

2008

0

0

7

1

0

0.45

C(South-western China)

21

2008

13

6

1

1

0

2.78

Total

118

2008–2013

73

12

21

7b

5

4.27

  1. aDistance between all sequences from the same location
  2. bFour of these recombinants were identified to be natural, while the others were supposed to be amplification artefacts