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3 results on '"V. Fourquenet"'

1. Prospective survey of indoor fungal contamination in hospital during a period of building construction

Author

V. Fourquenet, O. Vagner, C. L’Ollivier, H. Jury, Frédéric Dalle, Alain Bonnin, B. Cuisenier, J.-P. Besancenot, Serge Aho, Ingrid Lafon, C. Thibaut, Céline Calinon, Marc Sautour, Nathalie Sixt, Denis Caillot, Gérard Couillault, Microbiologie Environnementale, Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand ( CHU Dijon ), Laboratoire Interactions Muqueuses Agents Transmissibles ( LIMA ), Université de Bourgogne ( UB ), and Programme Hospitalier de recherche Clinique 2004 (PHRC) Délégation de la Recherche Clinique de Bourgogne, Dijon France

Subjects
Microbiology (medical), Veterinary medicine, Fungal contamination, Air Microbiology, Colony Count, Microbial, Microbiology, Bjerkandera adusta, [ SDV.MP ] Life Sciences [q-bio]/Microbiology and Parasitology, Patients' Rooms, Air treatment, medicine, Humans, Air Conditioning, Hospital Design and Construction, Prospective Studies, hospital, [ SDV.MP.MYC ] Life Sciences [q-bio]/Microbiology and Parasitology/Mycology, Mycosis, Infection Control, biology, fungus, Fungi, General Medicine, Fungi imperfecti, Contamination, biology.organism_classification, medicine.disease, Ventilation, Spore, Aspergillus, Infectious Diseases, Air Pollution, Indoor, nosocomial infection, Penicillium, air treatment
Abstract

International audience; An 18-month survey of indoor fungal contamination was conducted in one haematology unit during a period of construction work. Air was sampled with a portable Air System Impactor and surfaces with contact Sabouraud plates. During this survey the mean concentration of viable fungi in air was 4.2 cfu/m(3) and that for surfaces was 1.7 cfu/plate. At the beginning of construction work, there were increases in airborne fungal spores (from 3.0 to 9.8 cfu/m(3)) in the unit, but concentrations did not exceed 10 cfu/m(3) during the 18-month period. The most frequently recovered airborne fungi were Penicillium spp. (27-38%), Aspergillus spp. (25%) and Bjerkandera adusta, a basidiomycete identified with molecular tools (7-12%). Blastomycetes accounted for more than 50% of the fungal flora on surfaces. Investigating the impact of a new air-treatment system (mobile Plasmair units), there were significant reductions in fungal contamination for the Plasmer -treated rooms, and in these rooms we observed the same level of fungal load whether construction work was in progress or not.

Published
2007
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2. Profiles and seasonal distribution of airborne fungi in indoor and outdoor environments at a French hospital.

Author

Sautour M, Sixt N, Dalle F, L'Ollivier C, Fourquenet V, Calinon C, Paul K, Valvin S, Maurel A, Aho S, Couillault G, Cachia C, Vagner O, Cuisenier B, Caillot D, and Bonnin A

Subjects
Environmental Monitoring, France, Hospital Design and Construction, Seasons, Air Microbiology, Air Pollution, Indoor analysis, Fungi isolation & purification, Particulate Matter analysis
Abstract

A one-year prospective survey of fungal air contamination was conducted in outdoor air and inside two haematological units of a French hospital. Air was sampled with a portable Air System Impactor. During this period of survey, the mean viable fungal load was 122.1 cfu/m(3) in outdoor air samples, and 4.1 and 3.9 cfu/m(3) in samples from adult and pediatric haematology units, respectively. In outdoor samples, Cladosporium was the dominant genus (55%) while in the clinical units, Penicillium sp. (23 to 25%), Aspergillus sp. (15 to 23%) and Bjerkandera adusta (11 to 13%) were the most frequently recovered airborne fungi. The outdoor fungal load was far higher in autumn (168 cfu/m(3)), spring (110 cfu/m(3)) and summer (138 cfu/m(3)) than in winter (49 cfu/m(3)). In indoor air, fungal concentrations were significantly lower in winter (2.7 to 3.1 cfu/m(3)) than in summer (4.2 to 5.0 cfu/m(3)) in both haematology units. In the outdoor environment, Penicillium sp. and Aspergillus sp. were more abundant in winter while the levels of Cladosporium were lowest during this season. In the haematological units, the presence of Aspergillus sp. was stable during the year (close to 20%), Bjerkandera sp. was particularly abundant in winter (close to 30%); levels of Penicillium sp. were highest in autumn while levels of Cladosporium sp. were highest in spring and summer.

Published
2009
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3. Prospective survey of indoor fungal contamination in hospital during a period of building construction.

Author

Sautour M, Sixt N, Dalle F, L'ollivier C, Calinon C, Fourquenet V, Thibaut C, Jury H, Lafon I, Aho S, Couillault G, Vagner O, Cuisenier B, Besancenot JP, Caillot D, and Bonnin A

Subjects
Colony Count, Microbial, Fungi classification, Humans, Infection Control methods, Patients' Rooms, Prospective Studies, Ventilation, Air Conditioning instrumentation, Air Microbiology, Air Pollution, Indoor analysis, Fungi isolation & purification, Hospital Design and Construction
Abstract

An 18-month survey of indoor fungal contamination was conducted in one haematology unit during a period of construction work. Air was sampled with a portable Air System Impactor and surfaces with contact Sabouraud plates. During this survey the mean concentration of viable fungi in air was 4.2 cfu/m(3) and that for surfaces was 1.7 cfu/plate. At the beginning of construction work, there were increases in airborne fungal spores (from 3.0 to 9.8 cfu/m(3)) in the unit, but concentrations did not exceed 10 cfu/m(3) during the 18-month period. The most frequently recovered airborne fungi were Penicillium spp. (27-38%), Aspergillus spp. (25%) and Bjerkandera adusta, a basidiomycete identified with molecular tools (7-12%). Blastomycetes accounted for more than 50% of the fungal flora on surfaces. Investigating the impact of a new air-treatment system (mobile Plasmair units), there were significant reductions in fungal contamination for the Plasmer -treated rooms, and in these rooms we observed the same level of fungal load whether construction work was in progress or not.

Published
2007
Full Text
View/download PDF

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