贵港市77例华支睾吸虫病临床流行病学分析

目的了解贵港市华支睾吸虫病临床病例流行病学特点。方法疑似华支睾吸虫病例采当天第一次粪便30～50g,用水洗自然沉淀集卵法镜检虫卵,虫卵阳性者用Stoll法计数克粪虫卵数（EPG）划分感染度。结果确诊77例,重度感染13例,中度感染34例,轻度感染30例。年龄17～74岁,以40～49岁年龄组病例最多28例;男性占94.81%;工薪群体占62.34%;汉族占81.82%;市区占61.04%,农村占38.96%,50%的乡镇有病例。有并发症或合并症41例,占53.25%。有食鱼生史者占97.40%;从首次食鱼生至确诊时间,最短20天,最长53年。结论贵港市华支睾吸虫病以男性为主,随年龄增长增多,60岁后病例减少,市区病例呈上升趋势。

Epidemiological analysis of 77 clonorchiasis cases in Guigang City,Guangxi

Aim To understand the epidemiological features of the Clonorchis sinensis cases in Guigang City of Guangxi Zhuang Autonomous Region and provide a reference for controlling the disease.Methods Fecal samples were collected from patients（30～50g each） and examined by sedimentation technique.Definitive diagnosis of Chlonorchis sinensis infection would be made once the parasite eggs were detected.Number of eggs was counted by Stoll＇s method and the infectiosity was made based on the number of eggs per gram（EPG） feces.The light,medium and heavy infection were graded based on the EPG：EPG 500,501～5 000 and5 000 respectively.Results Among the 77 cases with Clonorchis sinensis eggs,13（16.88%） showed medium or heavy intensity of infection.44.16% showed moderate and 38.96% showed mild.The age of the patients was from 17 to 74 years old and 36.36% of them were in the age group of from 40 to 49 years old.94.81% of the case were male,62.34% of the case were salaried persons.81.82% of the cases were Han nationality.61.04% of the cases were in the Downtown,and 38.96% of the cases were in the rural.The cases distributed in 50% townships.41 cases with clinical complications（53.26%）.97.4% of the cases had a habit of eating raw fish.The duration from eating raw fish to definitive diagnosis of clonorchiasis was from 20 daysto 53 years.Conclusions Most of the clonorchis sinensis cases in Guigang City of 2009 years were males and the number of the cases was increased along with the gaining higher age of patients,and the number of cases decreased in the age grou of over 60 years old.Chlonorchisis showed an increasing trend in urban area and control measures be adopted.