摘要
目的 查明长乐市8名集体发病学生是否系感染广州管圆线虫引起。方法①病人脑脊液病原与嗜酸粒细胞检查。②鼠粪病原检查:现场采集鼠粪,溶解后,镜检广州管圆线虫1期幼虫。③福寿螺病原检查:取头部组织,用绞肉机绞碎,过滤沉淀,取上清液加入20％甲醛,离心,取渣检查广州管圆线虫3期幼虫。④临床表现与体征检查:着重中枢神经系统的临床表现与体征。结果①1例脑脊液中查见广州管圆线虫3期幼虫2条。8例嗜酸粒细胞为47％～83％,平均68％。③鼠粪广州管圆线虫1期幼虫感染率为39.3％(44/112)。③福寿螺广州管圆线虫3期幼虫感染率为40.0％(82/205)。④病人临床表现与体征,以剧烈头痛(8/8)、头晕(8/8)、恶心(8/8)、呕吐(8/8)、嗜睡(7/8)、下肢乏力(7/8)为主要特征。结论 证实长乐市8名集体发病学生是因广州管圆线虫重度感染引起,且当地是该虫的严重自然疫源地。
Objective To make etiological and epidemiological investigation on the infection of Angiostrongylus canto-nensis in 8 pupils in Changle City. Methods (1) CSF of patients was examined with the conventional method to detect pathogens and eosinophiles. (2) The fecal samples of wild rodents were collected from the spot and examined microscopically to discover the first stage larvae of A. cantonensis. (3) Snails (Pila gigas) were collected in the spot. The smashed head tissue was examined for the third stage larvae of A. cantonensis. (4) The patient's clinical symptoms and physical signs were recorded with an emphasis on central nervous system. Results (1) Two larvae of the third stage of A. cantonensis were found in CSF of one patient. Eosinophiles occupied 68% of the cell number in average (ranged from 47% to 83%) in CSF of the 8 patients. (2) The infection rate of the first stage larvae of A. cantonensis was 39.3% (44/112) in feces of the rodents. (3) The infection rate of the third stage larvae of A. cantonensis was 40. 0% (82/205) in the snails. (4) Major clinical manifestations in the 8 patients included: severe headache(8/8), dizziness(8/8), nausea(8/8), vomiting(8/8), lethargy(7/8), lower limb hypody-namia(7/8). Conclusion The confirmation of severe infection of A. cantonensis in 8 child patients demonstrated that a natural nidus of angiostrongyliasis is present in Chengle City.
出处
《中国寄生虫学与寄生虫病杂志》
CAS
CSCD
北大核心
2003年第2期110-112,共3页
Chinese Journal of Parasitology and Parasitic Diseases
