Tuberc Respir Dis.  1987 Mar;34(1):47-50. 10.4046/trd.1987.34.1.47.

Microbial Isolates from Central Air-Conditioning Systems in Hospital

• KMID: 2528670
• DOI: http://doi.org/10.4046/trd.1987.34.1.47

Abstract

In order to elucidate a possible role of the central air-conditioning system in hospital-acquired infections, the dusts and air were sampled from air-conditioning systems in general ward, corridor, medical ICU, hemodialysis room and laminar flow room, and cultured in blood agar and Sabouraud dextrose agar media. On fungal cultures of dust from all sites except the laminar flow room, Penicillium spp., Phialophora spp., Rhizopus spp., Cladosporium spp., Candida spp., Aspergillus spp., were isolated and on bacterial cultures, Bacillus subtilis. micrococci, coagulase negative staphylococci were isolated. On bacterial cultures of air from same sites, micrococci, coagulase negative staphylococci, Bacillus subtilis were isolated and no organism was isolated from bacterial and fungal cultures. This results suggest that the laminar flow room is necessaη for the immunosuppressed patients, and in the central air-conditioning rooms, the hypersensitivity pneumonitis caused by fungal agents and the opportunistic infections should be considered.