Air Sampling of Aspergillus: a 7-year Study in a General Hospital.

T. PELíEZ, J. MARTíNEZ-ALARCí“N, C. BOVE, M. TORRES, C. MATESANZ, L. ALCALA, J. GUINEA, E. BOUZA;

Author address: 

Hosp. Gen. Universitario Gregorio Marañon, Madrid, Spain.

Abstract: 

Background: Air sampling for the detection of fungal conidia is considered a standard of care in many institutions. Nevertheless, information regarding the yield of such sampling is scarce in the medical literature. We aimed to assess qualitatively and quantitatively the presence of fungal conidia in the air of protected and unprotected areas of a large hospital during a 7-year period (1999-2005). Methods: Quantitative sampling used air from areas of our hospital with (protected) and without (unprotected) HEPA filtration. Samples of air were collected using the Merck® Air Sampler. All the samples were cultured in Sabouraud-dextrose irradiated agar. Results: We collected 4232 air samples during the study period, 2113 in operating rooms (OP), 1369 in protected areas (P) and 750 in unprotected areas (UP). Of the total number of samples, 1145 (27%) were positive for fungi and 437 (10%) were positive for A. fumigatus. When we analyzed the number of positive samples for filamentous fungi (FF) in each area, 463 (22%) were positive in OP, 329 (24%) in P and 353 (47%) in UP (p
2006

abstract No: 

M-894

Full conference title: 

46th Interscience Conference on Antimicrobial Agents and Chemotherapy
    • ICAAC 46th