University of Gondar, College of Veterinary Medicine and Animal Sciences, Gondar, Ethiopia.
Sirinka Agricultural research center, Amhara Agricultural Research Institute, Woldia, Ethiopia.
Prev Vet Med. 2023 Jun;215:105909. doi: 10.1016/j.prevetmed.2023.105909. Epub 2023 Mar 28.
Contagious caprine pleuropneumonia (CCPP) is a serious contagious disease of goats, sheep and wild ruminants caused by Mycoplasma capricolum subspecies capripneumoniae. The disease is known for its high mortality, morbidity and economic losses. A cross-sectional study using multistage cluster sampling technique was conducted in Amhara region from January 2019 to July 2019 to estimate seroprevalence and identify risk factors of CCPP occurrence in the region. A total of 2080 goats from 61 villages and 12 districts of the region were tested for CCPP serostatus using Competitive Enzyme-Linked Immunosorbent Assay (C-ELISA). A multilevel mixed-effect logistic regression model was used to identify risk factors of CCPP seropositivity at animal and flock-level. The serum sample results revealed an overall animal level seroprevalence of 5.1% (95% CI: 3.8-6.6) and flock-level prevalence of 26.0% (95% CI: 19.7-33.4). At individual animal level, presence of other health problems (OR = 45.9 (95% CI: 25.3-83.4)), age (adult age (OR = 6.2 (95% CI:3.4-11.4)) and old age (OR = 13.1 (95% CI: 6.2-27.8))), and breed type (Afar (OR= 32.3 (95% CI: 2.9-366.1)), Central highland (OR=13.7 (95% CI: 1.3-140.6)), and western highland (OR=16.2 (95% CI: 1.4-185.7))) were identified as risk factors for CCPP seropositivity. In contrast, contact with other flocks (OR = 59.9 (95% CI: 6.1-585.6)), presence of trade route (OR = 3.1 (95% CI: 1.0-9.1)) and presence of sheep (OR = 2.6 (95% CI: 1.2-5.7)) were flock-level risk factors for CCPP seropositivity. Generally, CCPP appears to be common among goats of Amhara region. Goat flocks dominated with older age animals; breeds of Afar, central highland, and western highland; raise with sheep; have contact with other flocks; and kept along trade routes are more at risk for CCPP. Hence, awareness creation to the producers, movement control, and regular prophylactic vaccination should be considered to control CCPP in Amhara region.
传染性山羊胸膜肺炎(CCPP)是一种由绵羊肺炎支原体亚种引起的山羊、绵羊和野生反刍动物的严重传染病。该疾病死亡率、发病率高,经济损失大。2019 年 1 月至 7 月,在埃塞俄比亚阿姆哈拉地区采用多阶段聚类抽样技术进行了横断面研究,以评估该地区 CCPP 的血清流行率并确定其发生的危险因素。使用竞争性酶联免疫吸附试验(C-ELISA)对该地区 61 个村庄和 12 个区的 2080 只山羊进行了 CCPP 血清阳性检测。使用多水平混合效应逻辑回归模型在动物和羊群水平上确定 CCPP 血清阳性的危险因素。血清样本结果显示,动物总体血清流行率为 5.1%(95%置信区间:3.8-6.6),羊群流行率为 26.0%(95%置信区间:19.7-33.4)。在个体动物水平上,存在其他健康问题(OR=45.9(95%置信区间:25.3-83.4))、年龄(成年(OR=6.2(95%置信区间:3.4-11.4))和老年(OR=13.1(95%置信区间:6.2-27.8)))和品种类型(阿法尔(OR=32.3(95%置信区间:2.9-366.1))、中央高地(OR=13.7(95%置信区间:1.3-140.6))和西部高地(OR=16.2(95%置信区间:1.4-185.7)))被确定为 CCPP 血清阳性的危险因素。相反,与其他羊群接触(OR=59.9(95%置信区间:6.1-585.6))、有贸易路线(OR=3.1(95%置信区间:1.0-9.1))和有绵羊(OR=2.6(95%置信区间:1.2-5.7))是 CCPP 血清阳性的羊群水平危险因素。一般来说,CCPP 在阿姆哈拉地区的山羊中似乎很常见。年龄较大的动物、阿法尔、中央高地和西部高地品种的羊群;与绵羊一起饲养;与其他羊群接触;并沿着贸易路线饲养的羊群更有可能感染 CCPP。因此,应该向生产者宣传意识,控制动物的流动,并定期进行预防性接种,以控制阿姆哈拉地区的 CCPP。