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目的了解沈阳市练歌房和KTV饭店的麦克风细菌污染状况。方法随机抽取沈阳市的3个市区,1个郊区,1个县城的9家练歌房和8家设KTV包房的饭店,共17个单位,监测90个麦克风金属网表面的细菌总数,大肠菌群,霉菌计数,金黄色葡萄球菌,绿脓杆菌及结核杆菌。结果90个麦克风中,细菌总数超标率为95.56%,其中有54.44%样本超标100多倍,最高40000cfu/25cm2;大肠菌群、霉菌、金黄色葡萄球菌的阳性率分别为33.33%,94.44%,2.22%;绿脓杆菌及结核杆菌均为阴性。练歌房和饭店麦克风的细菌总数超标率分别为96.61%,93.55%;霉菌阳性率分别为93.22%,96.77%;大肠菌群阳性率分别为30.51%,38.71%。练歌房麦克风金黄色葡萄球菌阳性率为3.39%。郊区娱乐场所麦克风大肠菌群阳性率为50%,高于市区(P<0.05)。结论练歌房和饭店的麦克风细菌、霉菌、大肠菌污染普遍严重,并且有致病菌(金黄色葡萄球菌)的污染。
Objective To understand the bacterial contamination of microphones in Shenyang Songju Room and KTV Hotel. Methods Nine songrooms and eight KTV private dining rooms in three cities, one suburban area and one county in Shenyang were randomly selected. A total of 17 units were used to monitor the total number of bacteria on the surface of 90micrometer wire mesh, Coliforms, mold count, Staphylococcus aureus, Pseudomonas aeruginosa and Mycobacterium tuberculosis. Results The over-standard rates of total bacteria in 95 microphones were 95.56%, of which 54.44% exceeded the standard by 100 times and the maximum was 40000cfu / 25cm2. The positive rates of coliform bacteria, molds and Staphylococcus aureus were 33.33% and 94.44% 2.22%; Pseudomonas aeruginosa and Mycobacterium tuberculosis were negative. The total number of over-standard bacteria in practicing songroom and hotel microphones was 96.61% and 93.55%, respectively. The positive rates of molds were 93.22% and 96.77% respectively. The positive rates of coliform bacteria were 30.51% and 38.71% respectively. Practice song room microphone Staphylococcus aureus positive rate of 3.39%. The positive rate of coliform bacteria in suburban entertainment venues was 50%, higher than that in urban areas (P <0.05). Conclusion The practice of bacteria and fungi and coliform bacteria in practicing song and singing rooms and restaurants is generally serious and there is contamination by pathogenic bacteria (Staphylococcus aureus).