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Table 3 Prevalence of HEV-RNA in individual pigs (older and younger than 6 months) and herds

From: Widespread distribution of hepatitis E virus in Spanish pig herds

  Group Percentage prevalence (positive/total) p*
Pigs Adult 13.9% (28/201) 0.006
  Young 25.7% (36/140)  
  All 18.8% (64/341)  
Herds Grower/Fattener 38.1% (16/42) 0.066
  Farrow-to-finish 60.0% (18/30)  
  All herds 47.2% (34/72)  
  1. * Significance of Chi-square test