Abstract:
INTRODUCTION:In order to assess the relationship between the concentrations of airborne fungi and particles, particle counting was combined with fungal air sampling in several rooms of a hospital. METHODS:Concentrations of ≥0.5μm particles (P05) and ≥1μm particles (P1) were measured using a particle counter; fungal air sampling was performed with volumetric air samplers, which impacted air on Rodac plates with Sabouraud chloramphenicol agar. Particle counts were categorised according to ISO 14644-1 standard cut-off points; their association with fungal detection was assessed with Fisher's exact test. RESULTS:Forty-two simultaneous samplings were carried out: 24 in operating rooms, 13 in rooms for burns or haematology patients, 3 in pharmacy clean rooms, and two in other procedure rooms. Filamentous fungi were recovered in 5 samples, which also had higher particle counts. No fungi were detected in 12 samplings with both P05 and P1 concentrations below the maximum for class 6 clean rooms; 4 of 7 samplings with both concentrations within the range for class 8 clean rooms were positive for fungi. The association between fungal detection and higher particle counts was statistically significant, both for P05 (p=.004) and P1 (p=.003). There was a partial overlap between the concentrations of particles of samplings which were positive or negative for fungi. CONCLUSIONS:There is a relationship between the concentrations of P05 and P1 and airborne fungi in hospital rooms. When both P05 and P1 concentrations are below the maximum for class 6 clean rooms, a negative fungal detection can be predicted.
journal_name
Enferm Infecc Microbiol Clinjournal_title
Enfermedades infecciosas y microbiologia clinicaauthors
Armadans-Gil L,Rodríguez-Garrido V,Campins-Martí M,Gil-Cuesta J,Vaqué-Rafart Jdoi
10.1016/j.eimc.2012.01.005subject
Has Abstractpub_date
2013-04-01 00:00:00pages
217-21issue
4eissn
0213-005Xissn
1578-1852pii
S0213-005X(12)00036-5journal_volume
31pub_type
杂志文章abstract:BACKGROUND:Streptococcus pyogenes is a bacteria which, at present, is seldom isolated in blood and articular fluid. An intravenous drug addict with human immunodeficiency virus infection, with bacteremia and arthritis by S. pyogenes, associated with tuberculosis is presented. METHODS:Blood and articular fluid cultures...
journal_title:Enfermedades infecciosas y microbiologia clinica
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journal_title:Enfermedades infecciosas y microbiologia clinica
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