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Table 1 Serology and fecal shedding of resident foals in the farms investigated in this study tested for Lawsonia intracellularis (LI)

From: Lawsonia intracellularis in the feces of wild rodents and stray cats captured around equine farms

Farm ID

Location

Date diagnosing EPE

Foal serum samples (seropositive/total)

Fecal samples from foals (PCR positive/total)

Mean number of LI shed per gram of fecal samples

Main clinical findings in weanling foals at the occurrence of EPE

A

Gyeonggi

January 2011

2/5 (40%)

1/5 (20%)

1.2 × 105

Anorexia, fever (rectal temperature > 38.5 °C), weight loss, watery diarrhea

B

Gangwon

December 2012

1/3 (33%)

1/5 (20%)

1.0 × 103

Lethargy, anorexia, weight loss, and watery diarrhea (fecal staining of distal limb)

C

Chungnam

September 2011

3/4 (43%)

2/5 (40%)

1.4 × 104

Lethargy and diarrhea varying from cow pie to watery (fecal staining of distal limb)

D

Chungnam

February 2013

1/6 (17%)

1/5 (20%)

1.2 × 104

Mild lethargy, anorexia, fever, severe weight loss, and watery diarrhea

E

Jeonbuk

November 2012

1/4 (25%)

1/5 (20%)

1.3 × 105

Peripheral edema (ventrum, sheath, and distal limbs), weight loss, and diarrhea

F

Jeonnam

December 2012

6/7 (86%)

3/5 (60%)

1.7 × 106

Lethargy, fever (rectal temperature > 38.5 °C), severe weight loss, and diarrhea varying from cow pie to watery

G

Gyeongnam

January 2011

4/5 (80%)

2/5 (40%)

1.2 × 105

Fever (rectal temperature > 38.5 °C), peripheral edema (ventrum and distal limbs), severe weight loss, watery diarrhea

H

Jeju

February 2013

6/8 (75%)

4/5 (80%)

1.7 × 107

Lethargy, anorexia, fever (rectal temperature > 38.5 °C), severe weight loss, and watery diarrhea

  1. All farms involved in this study had known occurrences of equine proliferative enteropathy (EPE)