da Silva Andrade Juliana, Loiko Márcia Regina, Schmidt Candice, Vidaletti Marina Roth, Lopes Bruna Correa, Cerva Cristine, Varela Ana Paula Muterle, Tochetto Caroline, Maciel Anna Luiza Gisler, Bertagnolli Angélica Cavalheiro, Rodrigues Rogério Oliveira, Roehe Paulo Michel, Lunge Vagner Ricardo, Mayer Fabiana Quoos
Centro de Pesquisa em Saúde Animal, Instituto de Pesquisas Veterinárias Desidério Finamor, Departamento de Diagnóstico e Pesquisa Agropecuária, Secretaria de Agricultura, Pecuária e Desenvolvimento Rural, Estrada do Conde, 6000 Eldorado do Sul, RS, Brazil; Programa de Pós-graduação em Saúde Animal, Instituto de Pesquisas Veterinárias Desidério Finamor, Estrada do Conde, 6000 Eldorado do Sul, RS, Brazil.
Centro de Pesquisa em Saúde Animal, Instituto de Pesquisas Veterinárias Desidério Finamor, Departamento de Diagnóstico e Pesquisa Agropecuária, Secretaria de Agricultura, Pecuária e Desenvolvimento Rural, Estrada do Conde, 6000 Eldorado do Sul, RS, Brazil; Laboratório de Virologia, Departamento de Microbiologia, Imunologia e Parasitologia, Instituto de Ciências Básicas da Saúde, Porto Alegre, RS, Brazil; Feevale - Universidade Feevale, Novo Hamburgo, RS, Brazil.
Prev Vet Med. 2022 Sep;206:105698. doi: 10.1016/j.prevetmed.2022.105698. Epub 2022 Jun 21.
Wild boar (Sus scrofa) is an exotic invasive species in Brazil and may be a reservoir for several pathogens, including those related to the porcine respiratory disease complex (PRDC), a critical infectious disease in pig production. The objective of this study was to investigate viral and bacterial pathogens related to PRDC in free-living wild boars from Brazil. Eighty animals were examined in search of genomes of porcine circovirus 2 (PCV2), Torque teno Sus virus 1a (TTSuV1a) and 1b (TTSuV1b), Influenza A virus (IAV), Actinobacillus pleuropneumoniae, Glaesserella parasuis, Pasteurella multocida, and Mycoplasma hyopneumoniae. The results demonstrated that 57.5% (46/80) of the animals had at least one detected pathogen, and 11.3% of them (9/80) were co-infected. TTSuV1a was the most prevalent genome, for which risk factors were associated with increased contact between wild boars and other animals. The other pathogens were detected at much lower frequencies or not detected (M. hyopneumoniae and IAV). An additional IAV serology search identified H1N1pdm09 antibodies in 35.5% (16/45) of the wild boars, bringing concern related to public health. In conclusion, wild boars are infected with pathogens that cause swine diseases, so their eventual contact with domestic pigs might risk animal production in Brazil.
野猪（Sus scrofa）是巴西的外来入侵物种，可能是多种病原体的宿主，包括与猪呼吸道疾病综合征（PRDC）相关的病原体，PRDC是生猪生产中的一种重要传染病。本研究的目的是调查巴西自由生活的野猪中与PRDC相关的病毒和细菌病原体。对80只动物进行了检测，以寻找猪圆环病毒2型（PCV2）、猪圆环病毒1a型（TTSuV1a）和1b型（TTSuV1b）、甲型流感病毒（IAV）、胸膜肺炎放线杆菌、副猪嗜血杆菌、多杀性巴氏杆菌和猪肺炎支原体的基因组。结果表明，57.5%（46/80）的动物至少检测到一种病原体，其中11.3%（9/80）的动物存在共同感染。TTSuV1a是最普遍的基因组，其风险因素与野猪和其他动物之间接触增加有关。其他病原体的检测频率低得多或未检测到（猪肺炎支原体和IAV）。另外的IAV血清学检测在35.5%（16/45）的野猪中发现了H1N1pdm09抗体，这引发了对公共卫生的担忧。总之，野猪感染了导致猪病的病原体，因此它们最终与家猪接触可能会给巴西的动物生产带来风险。
