Najjari M, Karimazar M R, Rezaeian S, Ebrahimipour M, Faridi A
1Department of Parasitology and Mycology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
2Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Fars Iran.
J Parasit Dis. 2020 Mar;44(1):17-24. doi: 10.1007/s12639-019-01156-w. Epub 2019 Nov 26.
Cystic echinococcosis (CE) and liver fluke infections as important zoonotic infections impose a large socioeconomic impact on societies. As an endemic region for these infections, slaughterhouse inspections should be more considered in Iran. This study aimed to analyze the 11-year record of offal condemnation due to CE, fascioliasis, dicrocoeliasis infections in sheep and goat and its economic impact at Alborz slaughterhouse, north-central Iran. The prevalence rate was calculated as the infected organs (as nominator) divided by the slaughtered cases (as the denominator) in each year and month. The annual percent changes was used to determine trends of parasitic diseases over time. The relationship between metrological indexes and the prevalence of parasitic diseases was determined by the linear regression model. Statistical analyses were done using STATA software 14. For an estimate, the economic impact, the total numbers of offal condemnation were calculated. The overall prevalence rate of fascioliasis, dicrocoeliasis, and CE was 0.95%, 2.17%, and 12.74%, respectively. There was a declining trend in the prevalence of fascioliasis and dicrocoeliasis, whereas, the prevalence of CE increased from 7.57% in 2008 to 9.53% in 2018, representing an annual change of + 0.02%. The direct economic impact was estimated at US$ 1,670,977 and US$ 25,148 for liver and lung, respectively. The number of condemned organs due to these infections is noticeable in Alborz Province, north-central, Iran. The high economic impact of these infections showed the necessity of implementing a continuously infected animal's trace-back and disease control in the site of infection.
囊型包虫病（CE）和肝吸虫感染作为重要的人畜共患病感染，给社会带来了巨大的社会经济影响。作为这些感染的流行地区，伊朗应更加重视屠宰场检查。本研究旨在分析伊朗中北部阿尔伯兹屠宰场11年来因CE、片形吸虫病、双腔吸虫病感染导致的羊和山羊内脏废弃记录及其经济影响。患病率计算为每年和每月感染器官数量（作为分子）除以屠宰病例数（作为分母）。年度百分比变化用于确定寄生虫病随时间的趋势。通过线性回归模型确定气象指标与寄生虫病患病率之间的关系。使用STATA软件14进行统计分析。为了估计经济影响，计算了内脏废弃的总数。片形吸虫病、双腔吸虫病和CE的总体患病率分别为0.95%、2.17%和12.74%。片形吸虫病和双腔吸虫病的患病率呈下降趋势，而CE的患病率从2008年的7.57%上升到2018年的9.53%，年变化率为+0.02%。肝脏和肺脏的直接经济影响估计分别为1,670,977美元和25,148美元。在伊朗中北部的阿尔伯兹省，因这些感染而废弃的器官数量值得关注。这些感染造成的高经济影响表明，有必要在感染地点实施持续的感染动物追溯和疾病控制措施。
