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Oliveira TES, Scuisato GS, Pelaquim IF, Cunha CW, Cunha LS, Flores EF, Pretto-Giordano LG, Lisbôa JAN, Alfieri AA, Saut JPE, Jorge da Cunha PH, Headley SA. The Participation of a Malignant Catarrhal Fever Virus and Mycoplasma bovis in the Development of Single and Mixed Infections in Beef and Dairy Cattle With Bovine Respiratory Disease. Front Vet Sci 2021; 8:691448. [PMID: 34368279 PMCID: PMC8339727 DOI: 10.3389/fvets.2021.691448] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 05/20/2021] [Indexed: 11/16/2022] Open
Abstract
The bovine respiratory disease (BRD) complex is a multietiological and multifactorial disease associated with a wide range of viral and bacterial pathogens. This study evaluated the contribution of specific infectious disease agents in the development of BRD in cattle from Brazil and determined if a virus within the malignant catarrhal fever virus (MCFV) group and Mycoplasma bovis, acting individually or in conjunction, can be associated with the development of BRD. Formalin-fixed paraffin-embedded pulmonary sections were used in immunohistochemical assays to determine the intralesional presence of six antigens associated with BRD: bovine alphaherpesvirus 1 (BoHV-1), bovine parainfluenza virus 3 (BPIV-3), bovine viral diarrhea virus (BVDV), bovine respiratory syncytial virus (BRSV), MCFV, and M. bovis. Pneumonia was diagnosed in 82.7% (120/145) of all cattle evaluated. Interstitial pneumonia (60%, 72/120) and suppurative bronchopneumonia (25.8%, 31/120) were the most frequent patterns of pneumonia identified. Intralesional antigens of MCFV (53.3%, 64/120) were the most frequently associated with BRD, followed by M. bovis (47.5%, 57/120), BVDV (42.5%, 51/120), BoHV-1 (28.3%, 34/120), BRSV (24.2%, 29/120), and BPIV-3 (8.3%, 10/120). Additionally, antigens of BVDV, MCFV, and M. bovis were the most frequently identified agents associated with singular and concomitant infections. The MCFV identified during this study is more likely to be ovine gammaherpesvirus 2 (OvHV-2), since OvHV-2 is the only MCFV identified within the geographical region of this study. Interstitial pneumonia with proliferative vascular lesions may be a useful histologic feature to differentiate MCFV-induced pneumonia from other viral pneumonias of cattle. These results demonstrate that MCFV and M. bovis, in single or mixed infections, can produce pneumonia in cattle and should therefore be considered as primary agents in the development of BRD.
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Affiliation(s)
- Thalita Evani Silva Oliveira
- Laboratory of Animal Pathology, Department of Veterinary Preventive Medicine, Universidade Estadual de Londrina, Londrina, Brazil.,National Institutes of Science and Technology, Dairy Production Chain (INCT-Leite), Universidade Estadual de Londrina, Londrina, Brazil
| | - Gabriela Sanches Scuisato
- Laboratory of Animal Pathology, Department of Veterinary Preventive Medicine, Universidade Estadual de Londrina, Londrina, Brazil
| | - Isadora Fernanda Pelaquim
- Laboratory of Animal Pathology, Department of Veterinary Preventive Medicine, Universidade Estadual de Londrina, Londrina, Brazil
| | - Cristina Wetzel Cunha
- Animal Disease Research Unit, Agricultural Research Service, United States Department of Agriculture, Pullman, WA, United States.,Department of Veterinary Microbiology and Pathology and Paul G. Alan School for Global Animal Health, Washington State University, Pullman, WA, United States
| | - Lucas Santana Cunha
- Department of Statistics, Universidade Estadual de Londrina, Londrina, Brazil
| | - Eduardo Furtado Flores
- Department of Preventive Veterinary Medicine, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Lucienne Garcia Pretto-Giordano
- Laboratory of Veterinary Microbiology and Infectious Diseases, Department of Preventive Veterinary Medicine, Universidade Estadual de Londrina, Londrina, Brazil
| | - Júlio Augusto Naylor Lisbôa
- National Institutes of Science and Technology, Dairy Production Chain (INCT-Leite), Universidade Estadual de Londrina, Londrina, Brazil.,Large Animal Internal Medicine, Department of Veterinary Clinics, Universidade Estadual de Londrina, Londrina, Brazil
| | - Amauri Alcindo Alfieri
- National Institutes of Science and Technology, Dairy Production Chain (INCT-Leite), Universidade Estadual de Londrina, Londrina, Brazil.,Laboratory of Animal Virology, Department of Preventive Veterinary Medicine, Universidade Estadual de Londrina, Londrina, Brazil
| | - João Paulo Elsen Saut
- Large Animal Health Laboratory, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | | | - Selwyn Arlington Headley
- Laboratory of Animal Pathology, Department of Veterinary Preventive Medicine, Universidade Estadual de Londrina, Londrina, Brazil.,National Institutes of Science and Technology, Dairy Production Chain (INCT-Leite), Universidade Estadual de Londrina, Londrina, Brazil.,Programa de Pós-Graduação em Biociência Animal, Universidade de Cuiabá, Cuiabá, Brazil
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Viana NE, de Mello Zanim Michelazzo M, Oliveira TES, Cubas ZS, de Moraes W, Headley SA. Immunohistochemical identification of antigens of canine distemper virus in neotropical felids from Southern Brazil. Transbound Emerg Dis 2020; 67 Suppl 2:149-153. [PMID: 31916410 DOI: 10.1111/tbed.13422] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The pathologic and immunohistochemical findings associated with infections due to canine distemper virus (CDV) are described in the cougar (Puma concolor), margay (Leopardus wiedii) and jaguarundi (Herpailurus yagouaroundi) from Southern Brazil. Tissue sections of the neotropical felids (n = 3) that died at the Bela Vista Sanctuary, Paraná, Southern Brazil were routinely processed for histopathology to identify possible histopathologic patterns associated with infections due to CDV. Selected formalin-fixed paraffin embedded tissue sections of the lungs and urinary bladder were used in immunohistochemical assays designed to identify the antigens of CDV. The main histopathologic patterns identified were interstitial pneumonia in the margay and jaguarundi, while ballooning degeneration of the transitional epithelium of the urinary bladder was observed in the cougar. Positive immunoreactivity to antigens of CDV was identified within intralesional sections of the lungs of the two wild felids with interstitial pneumonia and in the degenerated urothelium of the cougar. These findings indicate that these neotropical cats were infected by a viral infectious disease pathogen common to the domestic dog and add to the few documented descriptions of CDV-induced infections in wildlife from Brazil.
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Affiliation(s)
- Nayara Emily Viana
- Laboratory of Animal Pathology, Department of Veterinary Preventive Medicine, Universidade Estadual de Londrina, Londrina, Brazil
| | | | - Thalita Evani Silva Oliveira
- Laboratory of Animal Pathology, Department of Veterinary Preventive Medicine, Universidade Estadual de Londrina, Londrina, Brazil
| | | | | | - Selwyn Arlington Headley
- Laboratory of Animal Pathology, Department of Veterinary Preventive Medicine, Universidade Estadual de Londrina, Londrina, Brazil
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