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Table 1 Detection of HEV-RNA in faecal samples from HEV positive farms.

From: Prevalence of four different subgenotypes of genotype 4 hepatitis E virus among swine in the Shanghai area of China

No. of farm

Positive samples/Total analyzed (%)

Subgroup of the strains

1

4/20(20%)

II

2

8/24(33.3%)

I

3

2/22(9.1%)

I

4

3/15(20%)

III

5

5/20(25%)

III

6

2/10(20%)

IV