Abubakar Muhammad, Ali Qurban, Khan Haider A
National Veterinary Laboratories, MINFAL, Park road, Islamabad, Pakistan.
Trop Anim Health Prod. 2008 Jun;40(5):317-21. doi: 10.1007/s11250-007-9105-2.
Present study was designed to investigate the prevalence and mortality (%) caused by Peste des Petitis Ruminant (PPR) and its possible association with abortion in goat flocks at different areas of Pakistan. A total of 140 animals were samples in the population of 650 which was having 185 deaths (Mortality rate = 28 %) from three different regions of the country. There were 58 abortions in the 140 pregnant goats of above said population One hundred & ten (110) serum samples from diseased, recovered and apparently healthy animals were tested for the presence of PPR antibodies by competitive ELISA (c ELISA). Eighty-four (84) animals were positive for PPR antibodies whereas in apparently healthy adult goats in the same flock, no PPR antibodies were detected. Twenty-four (24) tissue samples collected from the dead animals and six samples from aborted fetus were tested for the presence of PPR antigen by Immuno-capture ELISA (Ic ELISA). Nineteen (19) out of thirty (30) organ samples mainly from lung, spleen, lymph node were found positive for PPR antigen but negative from lungs of aborted fetus. There was a high rate of abortions (28-45%) in each of the outbreak and it was highest in the outbreak of Golra Sharif, Islamabad (No. = 21 in total population of 100). As the serum samples from the aborted dams were found positive for PPR antibodies so the study provides the possible association of mortality and prevalence of PPR disease with high rate of abortions in goat.
本研究旨在调查巴基斯坦不同地区山羊群中反刍动物小反刍兽疫(PPR)的流行率和死亡率(%)及其与流产的可能关联。在该国三个不同地区的650只动物群体中,共采集了140份样本,其中有185只死亡(死亡率=28%)。上述群体的140只怀孕山羊中有58只发生流产。通过竞争ELISA(c ELISA)对来自患病、康复和明显健康动物的110份血清样本进行PPR抗体检测。84只动物的PPR抗体呈阳性,而在同一羊群的明显健康成年山羊中未检测到PPR抗体。通过免疫捕获ELISA(Ic ELISA)对从死亡动物采集的24份组织样本和6份流产胎儿样本进行PPR抗原检测。30份主要来自肺、脾、淋巴结的器官样本中有19份PPR抗原呈阳性,但流产胎儿的肺组织样本呈阴性。每次疫情爆发时流产率都很高(28 - 45%),在伊斯兰堡戈尔拉·谢里夫的疫情中最高(在100只的总群体中有21只流产)。由于流产母羊的血清样本PPR抗体呈阳性,因此该研究表明PPR疾病的死亡率和流行率与山羊的高流产率可能存在关联。