Montenegro Olga L, Roncancio Nestor, Soler-Tovar Diego, Cortés-Duque Jimena, Contreras-Herrera Jorge, Sabogal Sandra, Acevedo Luz Dary, Navas-Suárez Pedro Enrique
1 Institute of Natural Sciences, National University of Colombia, Calle 53 No. 35-83, Bogotá, Colombia.
2 Epidemiology and Public Health Group, School of Agricultural Sciences, Universidad de La Salle, Carrera 7 No. 179-03, Bogotá, Colombia.
J Wildl Dis. 2018 Oct;54(4):700-707. doi: 10.7589/2017-09-236. Epub 2018 Jun 14.
In South America, wild populations of peccaries coexist with domestic and feral pigs, with poorly understood consequences. We captured 58 collared peccaries ( Pecari tajacu) and 15 feral pigs ( Sus scrofa) in locations of Colombia where coexistence of these species is known. Blood samples were tested for antibodies against four viral agents, classical swine fever virus (CSFV), Aujeszky's disease virus (ADV), porcine circovirus (PCV-2), and vesicular stomatitis virus (New Jersey and Indiana subtypes) and two bacterial agents, Brucella spp. and six serovars of Leptospira interrogans. The prevalence of CSFV was 5% (3/58) in collared peccaries and 7% (1/15) in feral pigs. The prevalence of PCV-2 was 7% (1/15) in collared peccaries and 67% (2/3) in feral pigs. Vesicular stomatitis prevalence was 33% (8/24) in collared peccaries and 67% (4/6) in feral pigs. Leptospira prevalence was 78% (39/50) in collared peccary and 100% (8/8) in feral pigs; bratislava, grippotyphosa, icterohaemorrhagiae, and pomona were the most frequent serovars. Also, the only white-lipped peccary ( Tayassu pecari) sampled was positive for L. interrogans serovar bratislava and for vesicular stomatitis virus, New Jersey strain. No samples were positive for ADV or Brucella. The seroprevalence of antibodies against L. interrogans was similar to that observed in other studies. Icterohaemorrhagiae appears to be a common serovar among in situ and ex situ peccary populations. Positive antibodies against PVC-2 represent a novel report of exposure to this pathogen in Colombian peccaries. Our results indicate the possible transmission of various pathogens, important for pig farms, in the studied pig and peccaries.
在南美洲，野猪种群与家猪和野猪共存，但其后果却鲜为人知。我们在哥伦比亚已知这些物种共存的地点捕获了58只领西貒（白唇西貒）和15头野猪。对血液样本进行了检测，以查找针对四种病毒病原体（经典猪瘟病毒、伪狂犬病病毒、猪圆环病毒2型以及水疱性口炎病毒（新泽西和印第安纳亚型））和两种细菌病原体（布鲁氏菌属以及问号钩端螺旋体的六个血清型）的抗体。经典猪瘟病毒的血清阳性率在领西貒中为5%（3/58），在野猪中为7%（1/15）。猪圆环病毒2型的血清阳性率在领西貒中为7%（1/15），在野猪中为67%（2/3）。水疱性口炎的血清阳性率在领西貒中为33%（8/24），在野猪中为67%（4/6）。钩端螺旋体的血清阳性率在领西貒中为78%（39/50），在野猪中为100%（8/8）；布拉迪斯拉发、犬型、出血性黄疸型和波摩那型是最常见的血清型。此外，所采集的唯一一只白唇西貒对问号钩端螺旋体布拉迪斯拉发血清型和新泽西株水疱性口炎病毒呈阳性。没有样本对伪狂犬病病毒或布鲁氏菌呈阳性。针对问号钩端螺旋体的抗体血清阳性率与其他研究中观察到的相似。出血性黄疸型似乎是野生和圈养西貒种群中常见的血清型。针对猪圆环病毒2型的阳性抗体代表了哥伦比亚西貒接触该病原体的新报告。我们的结果表明，在研究的猪和西貒中，可能存在对养猪场很重要的各种病原体的传播。
