1980～1985年间,作者对黑龙江下游不同地区2950名居民作了裂头绦虫病流行病学调查,对感染者询问了详细的既往史,并检查了黑龙江下游不同地段的鱼3000尾。调查表明该地区各居民点居民均有感染,感染的分布区与鲑鱼产卵回游时的分布区相一致。感染率为0.4～4.2％(平均1.8±0.2％),感染强度1至4条,90.2％的感染者仅有1条。北方部族居民的感染率比外来 Between 1980 and 1985, the authors investigated 2951 residents of different regions of Heilongjiang downstream for epidemiological studies of fissile taeniasis, inquired about their detailed past history and examined 3,000 fish in different parts of the lower reaches of Heilongjiang Province. Surveys showed that residents in all settlements in the area were infected, and the distribution of infection was consistent with the distribution of salmon spawning back. The infection rates ranged from 0.4 to 4.2% (mean, 1.8 ± 0.2%), with an infection of 1 to 4, with only 1 out of 90.2%. Northern tribal infection rates than outside