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Volume 26, Number 2—February 2020
Dispatch

Hepatitis E Virus in Pigs from Slaughterhouses, United States, 2017–2019

Harini Sooryanarain1, Connie L. Heffron1, Dolores E. Hill, Jorrell Fredericks, Benjamin M. Rosenthal, Stephen R. Werre, Tanja Opriessnig, and Xiang-Jin MengComments to Author 
Author affiliations: Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA (H. Sooryanarain, C.L. Heffron, S.R. Werre, X.-J. Meng); US Department of Agriculture, Beltsville, Maryland, USA (D.E. Hill, J. Fredericks, B.M. Rosenthal); University of Edinburgh, Midlothian, Scotland, UK (T. Opriessnig)

Main Article

Table

Detection of HEV IgG and RNA in serum of market-weight pigs from 25 slaughterhouses in 10 US states, 2017–2019*

State, slaughterhouse no. No. samples tested Positive for HEV IgG by ELISA, no. (%) Positive for HEV RNA by qRT-PCR, no. (%) HEV RNA, copies/mL, range
Oklahoma 455 269 (59.1) 24 (5.3) <100–1 × 104
Tennessee 56 32 (57.1) 1 (1.8) <100
Virginia
 213
 89 (41.8)
 6 (2.8)
 <100–4 × 105
Illinois
1 40 18 (45) 3 (7.5) 102–3,083
2 55 22 (40) 3 (5.5) <100
3 40 16 (40) 0 0
4 445 118 (26.5) 38 (8.5) <100–3 × 105
5
 259
 60 (23.3)
 2 (0.8)
 100
Wisconsin
 20
 9 (45)
 0
 0
Iowa
1 379 135 (35.6) 36 (9.5) <100–1 × 104
2 455 304 (66.8) 23 (5.1) <100–3 × 104
3 70 21 (30) 1 (1.4) 103
4 105 39 (37.1) 1 (1) <100
5 180 67 (37.2) 15 (8.3) <100–1 × 105
6 37 17 (46.0) 0 0
7 453 153 (33.8) 79 (17.4) <100–2 × 105
8
 22
 5 (22.7)
 0
 0
Minnesota
 233
 76 (32.6)
 10 (4.3)
 <100–1 × 104
North Carolina
1 245 61 (24.9) 7 (2.9) <100–3 × 104
2
 482
 266 (55.2)
 38 (7.9)
 <100–1 × 105
Nebraska
1 223 62 (27.8) 2 (0.9) 100 – 300
2
 241
 66 (27.49)
 9 (3.8)
 <100–1 × 105
Pennsylvania
1 50 0 1 (2) 200
2 35 8 (22.9) 1 (2.9) <100
3
 240
 94 (39.2)
 18 (7.5)
 <100–1 × 106
Total 5,033 2,007 (39.9) 318 (6.3) <100–1 × 106

*HEV, hepatitis E virus; qRT-PCR, quantitative reverse-transcription PCR.

Main Article

1These first authors contributed equally to this article.

Page created: January 20, 2020
Page updated: January 20, 2020
Page reviewed: January 20, 2020
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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