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Daniel AGS, Pereira CER, Dorella F, Pereira FL, Laub RP, Andrade MR, Barrera-Zarate JA, Gabardo MP, Otoni LVA, Macedo NR, Correia PA, Costa CM, Vasconcellos AO, Wagatsuma MM, Marostica TP, Figueiredo HCP, Guedes RMC. Synergic Effect of Brachyspira hyodysenteriae and Lawsonia intracellularis Coinfection: Anatomopathological and Microbiome Evaluation. Animals (Basel) 2023; 13:2611. [PMID: 37627402 PMCID: PMC10451556 DOI: 10.3390/ani13162611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 08/01/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Brachyspira hyodysenteriae and Lawsonia intracellularis coinfection has been observed in the diagnostic routine; however, no studies have evaluated their interaction. This study aimed to characterize lesions and possible synergisms in experimentally infected pigs. Four groups of piglets, coinfection (CO), B. hyodysenteriae (BRA), L. intracellularis (LAW), and negative control (NEG), were used. Clinical signals were evaluated, and fecal samples were collected for qPCR. At 21 days post infection (dpi), all animals were euthanized. Gross lesions, bacterial isolation, histopathology, immunohistochemistry, and fecal microbiome analyses were performed. Diarrhea started at 12 dpi, affecting 11/12 pigs in the CO group and 5/11 pigs in the BRA group. Histopathological lesions were significantly more severe in the CO than the other groups. B. hyodysenteriae was isolated from 11/12 pigs in CO and 5/11 BRA groups. Pigs started shedding L. intracellularis at 3 dpi, and all inoculated pigs tested positive on day 21. A total of 10/12 CO and 7/11 BRA animals tested positive for B. hyodysenteriae by qPCR. A relatively low abundance of microbiota was observed in the CO group. Clinical signs and macroscopic and microscopic lesions were significantly more severe in the CO group compared to the other groups. The presence of L. intracellularis in the CO group increased the severity of swine dysentery.
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Affiliation(s)
- Amanda G. S. Daniel
- Department of Veterinary Clinic and Surgery, Veterinary School, Universidade Federal de Minas Gerais, Belo Horizonte 130161-970, Brazil; (A.G.S.D.); (C.E.R.P.); (F.D.); (R.P.L.); (M.R.A.); (J.A.B.-Z.); (M.P.G.); (L.V.A.O.); (P.A.C.); (C.M.C.); (A.O.V.); (M.M.W.); (T.P.M.)
| | - Carlos E. R. Pereira
- Department of Veterinary Clinic and Surgery, Veterinary School, Universidade Federal de Minas Gerais, Belo Horizonte 130161-970, Brazil; (A.G.S.D.); (C.E.R.P.); (F.D.); (R.P.L.); (M.R.A.); (J.A.B.-Z.); (M.P.G.); (L.V.A.O.); (P.A.C.); (C.M.C.); (A.O.V.); (M.M.W.); (T.P.M.)
| | - Fernanda Dorella
- Department of Veterinary Clinic and Surgery, Veterinary School, Universidade Federal de Minas Gerais, Belo Horizonte 130161-970, Brazil; (A.G.S.D.); (C.E.R.P.); (F.D.); (R.P.L.); (M.R.A.); (J.A.B.-Z.); (M.P.G.); (L.V.A.O.); (P.A.C.); (C.M.C.); (A.O.V.); (M.M.W.); (T.P.M.)
| | - Felipe L. Pereira
- Department of Preventive Veterinary Medicine, Veterinary School, Universidade Federal de Minas Gerais, Belo Horizonte 130161-970, Brazil; (F.L.P.); (H.C.P.F.)
| | - Ricardo P. Laub
- Department of Veterinary Clinic and Surgery, Veterinary School, Universidade Federal de Minas Gerais, Belo Horizonte 130161-970, Brazil; (A.G.S.D.); (C.E.R.P.); (F.D.); (R.P.L.); (M.R.A.); (J.A.B.-Z.); (M.P.G.); (L.V.A.O.); (P.A.C.); (C.M.C.); (A.O.V.); (M.M.W.); (T.P.M.)
| | - Mariana R. Andrade
- Department of Veterinary Clinic and Surgery, Veterinary School, Universidade Federal de Minas Gerais, Belo Horizonte 130161-970, Brazil; (A.G.S.D.); (C.E.R.P.); (F.D.); (R.P.L.); (M.R.A.); (J.A.B.-Z.); (M.P.G.); (L.V.A.O.); (P.A.C.); (C.M.C.); (A.O.V.); (M.M.W.); (T.P.M.)
| | - Javier A. Barrera-Zarate
- Department of Veterinary Clinic and Surgery, Veterinary School, Universidade Federal de Minas Gerais, Belo Horizonte 130161-970, Brazil; (A.G.S.D.); (C.E.R.P.); (F.D.); (R.P.L.); (M.R.A.); (J.A.B.-Z.); (M.P.G.); (L.V.A.O.); (P.A.C.); (C.M.C.); (A.O.V.); (M.M.W.); (T.P.M.)
| | - Michelle P. Gabardo
- Department of Veterinary Clinic and Surgery, Veterinary School, Universidade Federal de Minas Gerais, Belo Horizonte 130161-970, Brazil; (A.G.S.D.); (C.E.R.P.); (F.D.); (R.P.L.); (M.R.A.); (J.A.B.-Z.); (M.P.G.); (L.V.A.O.); (P.A.C.); (C.M.C.); (A.O.V.); (M.M.W.); (T.P.M.)
| | - Luísa V. A. Otoni
- Department of Veterinary Clinic and Surgery, Veterinary School, Universidade Federal de Minas Gerais, Belo Horizonte 130161-970, Brazil; (A.G.S.D.); (C.E.R.P.); (F.D.); (R.P.L.); (M.R.A.); (J.A.B.-Z.); (M.P.G.); (L.V.A.O.); (P.A.C.); (C.M.C.); (A.O.V.); (M.M.W.); (T.P.M.)
| | - Nubia R. Macedo
- College of Veterinary Medicine, Iowa State University, Ames, IA 50011, USA;
| | - Paula A. Correia
- Department of Veterinary Clinic and Surgery, Veterinary School, Universidade Federal de Minas Gerais, Belo Horizonte 130161-970, Brazil; (A.G.S.D.); (C.E.R.P.); (F.D.); (R.P.L.); (M.R.A.); (J.A.B.-Z.); (M.P.G.); (L.V.A.O.); (P.A.C.); (C.M.C.); (A.O.V.); (M.M.W.); (T.P.M.)
| | - Camila M. Costa
- Department of Veterinary Clinic and Surgery, Veterinary School, Universidade Federal de Minas Gerais, Belo Horizonte 130161-970, Brazil; (A.G.S.D.); (C.E.R.P.); (F.D.); (R.P.L.); (M.R.A.); (J.A.B.-Z.); (M.P.G.); (L.V.A.O.); (P.A.C.); (C.M.C.); (A.O.V.); (M.M.W.); (T.P.M.)
| | - Amanda O. Vasconcellos
- Department of Veterinary Clinic and Surgery, Veterinary School, Universidade Federal de Minas Gerais, Belo Horizonte 130161-970, Brazil; (A.G.S.D.); (C.E.R.P.); (F.D.); (R.P.L.); (M.R.A.); (J.A.B.-Z.); (M.P.G.); (L.V.A.O.); (P.A.C.); (C.M.C.); (A.O.V.); (M.M.W.); (T.P.M.)
| | - Mariane M. Wagatsuma
- Department of Veterinary Clinic and Surgery, Veterinary School, Universidade Federal de Minas Gerais, Belo Horizonte 130161-970, Brazil; (A.G.S.D.); (C.E.R.P.); (F.D.); (R.P.L.); (M.R.A.); (J.A.B.-Z.); (M.P.G.); (L.V.A.O.); (P.A.C.); (C.M.C.); (A.O.V.); (M.M.W.); (T.P.M.)
| | - Thaire P. Marostica
- Department of Veterinary Clinic and Surgery, Veterinary School, Universidade Federal de Minas Gerais, Belo Horizonte 130161-970, Brazil; (A.G.S.D.); (C.E.R.P.); (F.D.); (R.P.L.); (M.R.A.); (J.A.B.-Z.); (M.P.G.); (L.V.A.O.); (P.A.C.); (C.M.C.); (A.O.V.); (M.M.W.); (T.P.M.)
| | - Henrique C. P. Figueiredo
- Department of Preventive Veterinary Medicine, Veterinary School, Universidade Federal de Minas Gerais, Belo Horizonte 130161-970, Brazil; (F.L.P.); (H.C.P.F.)
| | - Roberto M. C. Guedes
- Department of Veterinary Clinic and Surgery, Veterinary School, Universidade Federal de Minas Gerais, Belo Horizonte 130161-970, Brazil; (A.G.S.D.); (C.E.R.P.); (F.D.); (R.P.L.); (M.R.A.); (J.A.B.-Z.); (M.P.G.); (L.V.A.O.); (P.A.C.); (C.M.C.); (A.O.V.); (M.M.W.); (T.P.M.)
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