云南缅甸边境地区淋巴丝虫病现状调查

A survey of lymphatic filariasis in Yunnan-Myanmar border areas

目的了解云缅边境地区是否存在输入或当地微丝蚴血症者，以及当地蚊虫种类和居民出入边境情况。方法在云南省陇川县、盈江县沿云缅边境的各级医院开展线索调查，在有淋巴水肿／象皮肿、乳糜尿和鞘膜积液、睾丸炎、附睾炎、精索炎等疑似淋巴丝虫病症状患者的村，采集村民血样，涂厚血膜，镜检，查看是否存在微丝蚴；对村民进行问卷调查，同时捕捉蚊虫开展媒介调查。结果线索调查共查获13例有疑似淋巴丝虫病症状的患者，经盈江县和陇川县人民医院复诊，均排除淋巴丝虫病；病原学检测村民共423人，其中缅藉来滇务工人员105人，检测结果全部为阴性，没有发现输入或当地微丝蚴血症患者；共捕捉蚊虫9781只，其中库蚊8871只，占90．7％（8871／9781），按蚊694只，占7．1％（694／9781），骚扰阿蚊216只，占2．2％（216／9781）；问卷调查结果显示，当地居民中有39％（65／164）去过缅甸，98％（161／164）居民没有听说过淋巴丝虫病。结论云缅边境地区没发现输入或当地微丝蚴血症患者，建议当地县乡两级医院加强对疑似淋巴丝虫病症状患者的检查。

Objective To determine whether the cases of imported lymphatic filariasis or with microfilaria infected exist in Yunnan-Myanmar border areas, and understand the local mosquito species, the situation of the villagers who get in/out of the border. Methods A clue survey was carried out in all level＇s hospitals of I.ongchuan County and Yingjiang County,Yunnan Province, along Yunnan-Myanmar border. In the villages where exist the patients with symptoms such as lymphedema/elephantiasis, chyluria, hydrocele, orchitis, epididymitis and spermatic cord inflammation,the blood samples of villagers were collected to detect the pres- ence of microfilaria, mosquitoes were captured for understanding the mosquito species, and questionnaires among villagers were conducted to assess the situation of the villagers who get in/out of the border as well. Results 13 cases with symptoms mentioned above were excluded from lymphatic filariasis by People＇s Hos- pital in Yingjiang and Longchuan. In total, 423 people were detected by blood smear, all the results were negative; among them 105 were from Myanmar. There were no imported lymphatic filariasis or the cases in- fected with microfilaria found in the local. 9 781 mosquitoes were captured, the proportion of Culex, A nophe- les and A rmigeres mosquitoes is 90.7% （8871/9 781 ）,7.1% （694/9 781 ） and 2.2% （216/9 781 ）, respectively. 39% （65/164）of Chinese residents had visited Myanmar, and 98% （161/164） of Chinese residents had not heard of lymphatic filariasis. Conclusion There were no imported lymphatic filariasis or the cases with mi- crofilaria infected in the local in Yunnan-Myanmar border areas, but the hospital in Yunnan-Myanmar borderareas still should strengthen inspection and examination for the patients with suspicious symptomsof filariasis.