Abstract：
Poor indoor air quality in healthcare settings has been tied with the increase in hospital-acquired infections. Thus, this systematic review was conducted to assess the levels and compositions of bacteria in indoor hospital air in the Middle East and North Africa (MENA) region. We examined results provided by different search engines published between 2000 and 2021. Our data showed that most studies were conducted in Iran (80.9%) with a bacterial concentration mean of 172.9 CFU/m3. Comparing sensitive and non-sensitive areas of hospitals, no significant difference was detected in the mean bacterial concentration. The most investigated sensitive hospital areas were operating rooms and intensive care units with mean indoor bacterial concentrations of 180.3 CFU/m3 and 204.6 CFU/m3, respectively. Staphylococcaceae, Enterobacteriaceae, Pseudomonadaceae, and Bacillaceae were commonly identified bacterial families. In conclusion, the mean concentrations of the airborne bacteria were within the acceptable limit compared to WHO standards (300 CFU/m3) for the air in areas occupied by immunosuppressed people.
摘要：
医疗机构的室内空气质量差与医院获得性感染的增加有关。因此，本系统综述旨在评估中东和北非(MENA)地区医院室内空气中细菌的水平和组成.我们检查了2000年至2021年间发布的不同搜索引擎提供的结果。我们的数据表明，大多数研究是在伊朗进行的（80.9％），细菌浓度平均值为172.9CFU/m3。比较医院的敏感和非敏感区域，在平均细菌浓度中没有检测到显著差异。调查最多的敏感医院区域是手术室和重症监护病房，平均室内细菌浓度分别为180.3CFU/m3和204.6CFU/m3。葡萄球菌科,肠杆菌科,假竹科,和芽孢杆菌科通常被鉴定为细菌科。总之,与WHO标准(300CFU/m3)相比,在免疫抑制人群占据的地区,空气中细菌的平均浓度在可接受的限度内.
