江西省并殖吸虫与并殖吸虫病的分布状况

DISTRIBUTION OF PARAGONIMUS AND PARAGONIMIASIS IN JIANGXI PROVINCE

本文报告了我省１６个县（市）的并殖吸虫与并殖吸虫病抽样调查的结果，并结合上饶等３２县、市、区有并殖吸虫及人群感染报道的历史资料，提示我省有４８个县、市、区为并殖吸虫的自然疫源地或有人群感染。１６个县、市、区用皮内试验方法共检查２８００人，阳性２５３例（９％），男、女之皮试阳性率间差别无显著意义（Ｐ＞０．０５），反应强度主要为＂＋＂的弱阳性反应（占９１．７％），对皮试阳性的２４２例再用酶联免疫吸附试验，检出阳性者１６９例，阳性符合率为６９．８％。各县人群均有食蟹史，以青、少年为多，病史询问绝大多数无症状。１６个县、市、区共解剖溪蟹１３１２只，阳性蟹３４１只（２６％），以福建溪蟹为主，其次有南海溪蟹属和束腰蟹十余种。病原以卫氏并殖吸虫为优势虫种。

This paper reports the sampling survey of Paragonimus and paragonimiasis in 16 counties/cities as well as data review comprising 32 counties/cities. The results suggested the occurrence of natural nidus and/or infection of residents in 48 counties/cities and districts. Intradermal (ID) test in 2 800 persons from 16 counties/cities and districts showed a positive rate of 9.0%, the majority revealing weak reaction. Of the 242 positively reacted indivi duals, 169 were also positive for ELISA (coincidence rate 69.8%). Crab consuming habit was common in people of the study counties/cities, especially in juveniles. Most of the ID test and/or ELISA positive individuals were asymptomatic. A total of 1 312 crabs caught from 16 counties/cities were dissected, consequently, 341 (26%) were found to harbour metacerca riae. Potamon fukienensis was the major second intermediate host, and Paragonimus westermani being the predominant pathogen.