Air conditioning systems and nosocomial infections in Mosul hospitals


Background: Nosocomial infections (NIs) have proven to be persistent andsometimes complicated problem. More than one third of all nosocomial infectionspossibly involve airborne transmission. The aim of this study is to estimate the typesof bacteria that could be present in air-conditioning systems of some hospitals andtheir antibiotic sensitivity profile.Materials and methods: Swab samples were taken from air-conditioning systemfilters and rendered for bacterial identification and evaluation of their antibioticsusceptibility.Results: The results showed twenty isolates from three different hospitals. Ibn Sinashowed ١٦ isolates (٥ S. aureus; ٣ S. epidermidis; ٤ S. saprophyticus; ١ E. coli; ١Proteus mirabilis; ١ Klebsiella pneumoniae and ١ Pseudomonas aeruginosa), Ibn Al-Atheer hospital showed only ٢ isolates (١ S.aureus, and ١ Streptococcus) and Al-Jumhori hospital showed only ٢ isolates (١ S. aureus, and ١ S. saprophyticus); most ofthis isolates are resistant to the antibiotics used in this study.Conclusion: there are a risky bacteria located in air conditioners especially indoorconventional systems more than the hospital designed systems and still both representa susceptible source for nosocomial infection.