Serosurvey of anti-Neospora caninum antibodies in wild boars (Sus scrofa), hunting dogs and hunters of Brazil

Louise Bach Kmetiuk; Adriana Hellmeister de Campos Nogueira; Liria Hiromi Okuda; Alexandre Lopes Gomes; Maria do Carmo Custódio de Souza Hunold Lara; Eliana Monteforte Cassaro Villalobos; Camila Marinelli Martins; Monicque Silva Pereira; Ivan Roque de Barros Filho; Renato van Wilpe Bach; Leandro Cavalcante Lipinski; Andrea Pires Dos Santos; Alexander Welker Biondo

doi:10.1016/j.vprsr.2020.100522

Serosurvey of anti-Neospora caninum antibodies in wild boars (Sus scrofa), hunting dogs and hunters of Brazil

Vet Parasitol Reg Stud Reports. 2021 Jan:23:100522. doi: 10.1016/j.vprsr.2020.100522. Epub 2020 Dec 24.

Authors

Louise Bach Kmetiuk¹, Adriana Hellmeister de Campos Nogueira², Liria Hiromi Okuda³, Alexandre Lopes Gomes⁴, Maria do Carmo Custódio de Souza Hunold Lara⁵, Eliana Monteforte Cassaro Villalobos⁶, Camila Marinelli Martins⁷, Monicque Silva Pereira⁸, Ivan Roque de Barros Filho⁹, Renato van Wilpe Bach⁷, Leandro Cavalcante Lipinski⁷, Andrea Pires Dos Santos¹⁰, Alexander Welker Biondo¹¹

Affiliations

¹ Graduate College of Cellular and Molecular Biology, Federal University of Paraná (UFPR), Coronel Francisco Heráclito dos Santos Avenue, 100, Curitiba, Paraná 81531-970, Brazil.
² Laboratory of Bovine Viruses, Animal Health Research and Development, Biological Institute, Conselheiro Rodrigues Alves Avenue, 1252, São Paulo, São Paulo State 04014-002, Brazil. Electronic address: [email protected].
³ Laboratory of Bovine Viruses, Animal Health Research and Development, Biological Institute, Conselheiro Rodrigues Alves Avenue, 1252, São Paulo, São Paulo State 04014-002, Brazil. Electronic address: [email protected].
⁴ Laboratory of Bovine Viruses, Animal Health Research and Development, Biological Institute, Conselheiro Rodrigues Alves Avenue, 1252, São Paulo, São Paulo State 04014-002, Brazil.
⁵ Laboratory of Rabies and Viral Encephalitis, Animal Health Research and Development, Biological Institute, Conselheiro Rodrigues Alves Avenue, 1252, São Paulo, São Paulo State 04014-002, Brazil. Electronic address: [email protected].
⁶ Laboratory of Rabies and Viral Encephalitis, Animal Health Research and Development, Biological Institute, Conselheiro Rodrigues Alves Avenue, 1252, São Paulo, São Paulo State 04014-002, Brazil. Electronic address: [email protected].
⁷ Department of Medicine, State University of Ponta Grossa, General Carlos Cavalcanti, 4748, Ponta Grossa, Paraná 84030-900, Brazil.
⁸ São Paulo State Department of the Environment, Brasil Avenue, 2340, Campinas, São Paulo 13073-012, Brazil. Electronic address: [email protected].
⁹ Department of Veterinary Medicine, Federal University of Paraná State, Funcionários Street, 1540, Curitiba, Paraná 80035-050, Brazil. Electronic address: [email protected].
¹⁰ Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, 725 Harrison Street, West Lafayette, IN 47907-2027, USA. Electronic address: [email protected].
¹¹ Graduate College of Cellular and Molecular Biology, Federal University of Paraná (UFPR), Coronel Francisco Heráclito dos Santos Avenue, 100, Curitiba, Paraná 81531-970, Brazil; Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, 725 Harrison Street, West Lafayette, IN 47907-2027, USA. Electronic address: [email protected].

PMID: 33678377
DOI: 10.1016/j.vprsr.2020.100522

Abstract

The protozoan Neospora caninum is an important cause of abortion in cattle worldwide, with domestic dogs serving as the definitive hosts. Although hunting activities have been indicated as a potential risk factor for N. caninum infection in dogs, no serological evidence has so far been reported in hunting dogs, wild boars (Sus scrofa), and hunters. A total of 98 wild boars, 168 hunting dogs, and 15 hunters from three Brazilian regions were sampled and tested for anti-N. caninum antibodies by indirect immunofluorescence antibody test, resulting in 15/168 (9%) seropositive hunting dogs, and 0/98 wild boars, and 0/15 hunters seropositive. The absence of N. caninum antibodies in wild boars may suggest low exposure to oocysts shed by hunting dogs and wild canids in three different Brazilian regions. Finally, the absence of hunter seropositivity supports the current lack of evidence that N. caninum is a zoonotic parasite.

Keywords: Brazilian biomes; Hunting activities; Rural dogs.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Animals
Antibodies, Protozoan / blood*
Brazil / epidemiology
Dogs
Neospora*
Seroepidemiologic Studies
Sus scrofa / blood*
Sus scrofa / immunology
Working Dogs* / blood
Working Dogs* / immunology

Substances

Antibodies, Protozoan