Louisiana Department of Wildlife and Fisheries, 2000 Quail Drive, Baton Rouge, Louisiana 70898, USA.
Agricultural Center and School of Renewable Natural Resources, Louisiana State University, 227 RNR Building, Baton Rouge, Louisiana 70803, USA.
J Wildl Dis. 2022 Jan 1;58(1):183-187. doi: 10.7589/JWD-D-20-00192.
From August to December 2018, we collected blood samples from 98 individuals of 11 mammal species to examine seroprevalence of leptospirosis at the Sherburne Wildlife Management Area in central Louisiana, US. Overall, 21.4% of individuals tested positive for antibodies of at least one Leptospira interrogans serovar and six individuals were reactive for two or more serovars. The most prevalent serovar we detected was serovar Bratislava (19.4%), followed by serovar Grippotyphosa (6.1%), serovar Icterohaemorrhagiae and serovar Pomona (2.0%), and serovar Canicola and serovar Hardjo (1.0%). We detected the highest prevalence in fox squirrels (Sciurus niger), hispid cotton rats (Sigmodon hispidus), and feral swine (Sus scrofa), with serovar Bratislava being the most reactive for these three species. Positive samples returned titer results of 100-400 for all species and serovars, with the exception of one feral swine that returned a titer of 1,600 to serovar Bratislava, indicating an active infection. Although the potential effects of leptospirosis on our study species remains unclear, our data contribute information necessary to understand and manage potential risks of Leptospira exposure to wildlife, domestic animals, and humans.
2018 年 8 月至 12 月，我们采集了来自美国路易斯安那州中部舍伯恩野生动物管理区 11 种哺乳动物的 98 个个体的血液样本，以检测莱姆病的血清流行率。总体而言，21.4%的个体至少有一种钩端螺旋体血清型的抗体呈阳性，6 个个体对两种或更多血清型呈反应性。我们检测到的最流行的血清型是布拉迪斯拉发血清型（19.4%），其次是 grippotyphosa 血清型（6.1%）、icterohaemorrhagiae 血清型和波蒙那血清型（2.0%），以及 canicola 血清型和硬乔氏血清型（1.0%）。我们在狐松鼠（Sciurus niger）、多毛棉鼠（Sigmodon hispidus）和野猪（Sus scrofa）中检测到最高的流行率，其中布拉迪斯拉发血清型对这三个物种的反应性最强。所有物种和血清型的阳性样本的滴度结果均为 100-400，除了一个野猪对布拉迪斯拉发血清型的滴度为 1600，表明存在活动性感染。尽管莱姆病对我们研究物种的潜在影响尚不清楚，但我们的数据提供了必要的信息，以了解和管理钩端螺旋体暴露对野生动物、家畜和人类的潜在风险。
