Radi M, Merdan A I, Labib I
Department of Entomology, Faculty of Science, Ain Shams University, Abbassia, Cario.
J Egypt Soc Parasitol. 1991 Dec;21(3):839-48.
Fly sampling was evaluated under laboratory conditions before starting the field surveys. Three different fly traps were tested, of which the Spiralettes (a commercial one) proved to be the most efficient. Sampling conditions were also considered in this laboratory evaluation, light, air current, swinging, height and temperature were tested, all of them have affected fly trapping except height. Fly density and distribution in two general hospitals and two specialized ones, were estimated in order to evaluate them epidemiologically in relation to hospital bacterial contamination. Results of these surveys revealed the followings: (1) The location of the hospital has no impact on the fly density. (2) Flies are attracted more to swinging hanged ribbon traps than to fixed ones. (3) Fly densities were relatively high in the main kitchens and the main garbages followed by toilets (common ones), patient wards, outpatients investigating rooms, surgical theaters and plasterrooms of the hospitals. (4) Fly density is higher during warm seasons than in cold ones.
在开始实地调查之前,先在实验室条件下对捕蝇情况进行了评估。测试了三种不同的捕蝇器,其中螺旋捕蝇器(一种商用捕蝇器)被证明是最有效的。在这次实验室评估中还考虑了采样条件,对光照、气流、摆动、高度和温度进行了测试,除高度外,所有这些因素都对捕蝇有影响。为了从流行病学角度评估苍蝇与医院细菌污染的关系,对两家综合医院和两家专科医院的苍蝇密度和分布情况进行了估计。这些调查结果如下:(1)医院的位置对苍蝇密度没有影响。(2)与固定的丝带捕蝇器相比,苍蝇更被摆动的悬挂丝带捕蝇器吸引。(3)医院的主厨房和主垃圾场的苍蝇密度相对较高,其次是厕所(普通厕所)、病房、门诊检查室、手术室和石膏室。(4)温暖季节的苍蝇密度高于寒冷季节。