带头大队属广东省曲江县,位于海拔约400公尺山坳之中,远离其他居民点,地理位置较特殊。1958年至1961年间,该大队不少儿童死于原因不明的肝脾肿大,因该县是血吸虫病流行区,多疑为血吸虫病所致。为此,省委曾于1961年7月派出医疗队到大队进行流行病学调查(本文作者之一是当时医疗队负责人)。经调查证实,儿童死亡原因乃华枝睾吸虫重度感染所致。当时14岁以下儿童感染率高达53.5%(涂片法),大多有肝脾肿大,感染度较重。感染途径主要是在野外烤食未熟的野生小鱼(麦穗鱼和白条鱼)。随即进行了治疗和广泛的宣传教育。为了解该大队华枝睾吸虫病的转归和流行现状,我们于1983年1月到该大队再次进行调查,现将结果报告如下: Leading brigade is Qujiang County, Guangdong Province, located at an altitude of about 400 meters col, away from other settlements, the geographical position is rather special. Between 1958 and 1961, many children in the brigade died of hepatosplenomegalosis of unknown cause because the county is endemic to schistosomiasis and is suspicious of schistosomiasis. To this end, the Provincial Party Committee sent a medical team to the brigade for an epidemiological investigation in July 1961 (one of the authors of this article was head of the medical team at that time). The investigation confirmed that the cause of death of children is caused by severe infection of Clonorchis sinensis. At that time, children under 14 years old infection rate as high as 53.5% (smear method), most have hepatosplenomegaly, severe infection. The main route of infection is to grill unripe wild fish (spikelets and white fish) in the wild. Immediate treatment and a wide range of publicity and education. To understand the outcome and prevalence of clonorchiasis in the brigade, we conducted another investigation into the unit in January 1983 and report the result as follows: