TY - JOUR
T1 - A multicenter evaluation of the Biotest legionella urinary antigen EIA
AU - Harrison, Timothy
AU - Uldum, Søren
AU - Alexiou-Daniel, Stella
AU - Bangsborg, Jette Marie
AU - Bernander, Sverker
AU - Dra&sbreve;ar, Vladimir
AU - Etienne, Jerome
AU - Helbig, Jürgen
AU - Lindsay, Diane
AU - Lochman, Ivo
AU - Marques, Teresa
AU - de Ory, Fernando
AU - Tartakovskii, Igor
AU - Wewalka, Günther
AU - Fehrenbach, Franz
PY - 1998
Y1 - 1998
N2 - OBJECTIVES: To undertake a multicenter study to evaluate the Biotest legionella urinary antigen enzyme immunoassay (EIA) performance against those EIAs already in use in 14 European laboratories. METHODS: Each laboratory examined urine specimens from appropriate patients using both their current assay and the Biotest EIA. Each examined: a standard panel of 12 coded urine samples (distributed by Biotest); a panel of 10 coded urine samples provided as part of a European external quality assurance (EQA) scheme; urine samples from patients with proven legionnaires' disease (LD); urine samples from patients with pneumonia of microbiologically proven cause other than LD; and urine samples submitted for routine examination. Thus, the performance of the Biotest assay (in comparison with current EIAs), its specificity and utility, and the inter-laboratory agreement were assessed. RESULTS: Inter-laboratory agreement was excellent, with all participants obtaining the expected results for 20 of 22 coded urine specimens. Specificity, determined using 123 specimens from patients with infections of known etiology, was 100%. The Biotest EIA gave positive results in 86% of specimens which had been positive in the laboratories' current EIAs, and in 94.6% of those specimens which were positive for Legionella pneumophila serogroup 1. CONCLUSION: The Biotest EIA is simple to use and specific and the results obtained in different laboratories show excellent agreement. The assay compares well existing EIAs, at least for L. pneumophila serogroup 1
AB - OBJECTIVES: To undertake a multicenter study to evaluate the Biotest legionella urinary antigen enzyme immunoassay (EIA) performance against those EIAs already in use in 14 European laboratories. METHODS: Each laboratory examined urine specimens from appropriate patients using both their current assay and the Biotest EIA. Each examined: a standard panel of 12 coded urine samples (distributed by Biotest); a panel of 10 coded urine samples provided as part of a European external quality assurance (EQA) scheme; urine samples from patients with proven legionnaires' disease (LD); urine samples from patients with pneumonia of microbiologically proven cause other than LD; and urine samples submitted for routine examination. Thus, the performance of the Biotest assay (in comparison with current EIAs), its specificity and utility, and the inter-laboratory agreement were assessed. RESULTS: Inter-laboratory agreement was excellent, with all participants obtaining the expected results for 20 of 22 coded urine specimens. Specificity, determined using 123 specimens from patients with infections of known etiology, was 100%. The Biotest EIA gave positive results in 86% of specimens which had been positive in the laboratories' current EIAs, and in 94.6% of those specimens which were positive for Legionella pneumophila serogroup 1. CONCLUSION: The Biotest EIA is simple to use and specific and the results obtained in different laboratories show excellent agreement. The assay compares well existing EIAs, at least for L. pneumophila serogroup 1
M3 - Journal article
C2 - 11864350
SN - 1469-0691
VL - 4
SP - 359
EP - 365
JO - Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases
JF - Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases
IS - 7
ER -