Khodabandeh Maryam, Shirani-Bidabadi Leila, Madani Mahboobe, Zahraei-Ramazani Alireza
Islamic Azad University Falavarjan Branch, Faculty of Microbiology, Department of Microbiology, University Boulevard, Post Box: 155/84515, Falavarjan, Iran.
Kerman University of Medical Sciences, School of Public Health, Department of Vector Biology and Control of Disease, Haft-Bagh Highway, Post Box: 76169-13555, Kerman, Iran.
J Pathog. 2020 Jul 26;2020:4296720. doi: 10.1155/2020/4296720. eCollection 2020.
American cockroaches contaminated with pathogens inside hospital manholes can be one of the major problems that health care systems face.
The aim of this study was to investigate the fungal infections of American cockroaches in the Esfahan hospital sewage network. The principle goal of the study was about the roaches as a vector of fungi and other pathogens.
The type of study was descriptive-analytical. A total of 55 American cockroach specimens from the manhole walls of the sewerage system of 7 large hospitals were captured. Samples were taken from the surface of the body, digestive tract, and haemocoel of cockroaches. The specimens were then cultured on Sabouraud dextrose agar separately, and fungi were identified according to the macroscopic and microscopic characteristics.
All cockroaches collected from hospitals were infected with fungi. Among the 24 (13 infected and 11 noninfected) (44%) female cockroaches and 31 (18 infected and 13 noninfected) (56%) male cockroaches, it was identified that 40.00% was infected with , 3.64% with , 7.27% with , and 5.45% with . 6 cockroaches had no yeast contamination. 17 (30.91%) cockroaches were contaminated with , 23 (41.82%) cockroaches were contaminated with , and (40%) cockroaches were contaminated with other yeast species. The results of this study showed that had the highest prevalence among the isolated fungi with 35.37% of the digestive system and with 70.97% of the surface of the cockroach body.
The results emphasized the role played by cockroaches as potential pathogenic vectors in hospital environments. Therefore, suitable management is needed for controlling this insect to prevent disease transmission in hospitals.
医院下水道沙井内被病原体污染的美洲大蠊可能是医疗系统面临的主要问题之一。
本研究旨在调查伊斯法罕医院污水管网中美洲大蠊的真菌感染情况。该研究的主要目标是了解蟑螂作为真菌和其他病原体载体的情况。
本研究为描述性分析研究。从7家大型医院污水处理系统的沙井壁上共捕获55只美洲大蠊标本。样本取自蟑螂的体表、消化道和血腔。然后将标本分别接种在沙氏葡萄糖琼脂培养基上，根据宏观和微观特征鉴定真菌。
从医院收集的所有蟑螂均感染了真菌。在24只（13只感染，11只未感染）（44%）雌性蟑螂和31只（18只感染，13只未感染）（56%）雄性蟑螂中，鉴定出40.00%感染了 ，3.64%感染了 ，7.27%感染了 ，5.45%感染了 。6只蟑螂没有酵母污染。17只（30.91%）蟑螂被 污染，23只（41.82%）蟑螂被 污染， （40%）蟑螂被其他酵母菌种污染。本研究结果表明，在所分离的真菌中， 在消化系统中的感染率最高，为35.37%，在蟑螂体表的感染率为70.97%。
结果强调了蟑螂在医院环境中作为潜在致病载体所起的作用。因此，需要采取适当的管理措施来控制这种昆虫，以防止医院内疾病传播。
