عزل وتشخيص بعض الأحياء المجهرية الملوثة لأنظمة التكييف في مستشفى الرمادي للنسائية والأطفال.

Abstract

A total of 1200 sampls of various swaps in Maternity and ChildrenHospital in Ramadi were collected during summer season;1/5/2004 - 30/10/2004.Sources of isolation included the hospital environment ( the floor, patients, beds),the internal air, air of ventilation pipes belonging to the hospital conditionedsystem with it’s two floors. The samples of the four source groups mentionedabove consisted of 400 samples taken from the internal surfaces of airconditioning pipes and 400 samples from the air of internal hospital halls and400 samples from the hospital inanimate environment such as ground and beds.The study was carried out with ten attempts. Each attempt included tendepartments of the hospital. After isolation and identification of the isolates , thefollowings were found :-The Majority of the microbial isolates were found to be of bacterialorigin with a percent of (85.6%) in the whole microbial isolates.-Fungal isolates took the second class with a percent of (8.9%) .-Some of the isolates recorded mixed cultures (bacteria and fungi),butundiagnosed like gram positive rods and fungal threads.Thier percentage was(5.4%) .-Aspergillus sp isolates were found to be predominant among thediagnosed mycotic agents (61.1%) while Candida albicans came in the secondrange (38.9%).-Gram negative bacteria possessed a higher percentage among otherbacterial types which had a percent of 67.5%, while the percentage of grampositive bacteria was 32.5% .-In gram negative bacteria, Klebsilla pneumonia was the highest amongthe others, its percentage was 16.5% ,while Providencia bacteria was the lowesttype with 0.9% .-Coagulase negative Staphylococcus had the highest percent whichreached 14.3% , while the α- hemolytic Streptococcus had the lowest percentamong the G+ve bacteria which reached 2.7% .-According to the results obtained, the internal surfaces of the airconditioningpipes consisted the highest microbial growth (bacteria, fungai andmixed isolates) in comparison with the isolated smears of the inner air of rooms,grounds and patient's beds. Also, the ground deck in the hospital had thegreatest level in microbial pollution in comparison with the first deck.