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Clinical and Diagnostic Laboratory Immunology, 01 1995, 69-72, Vol 2, No. 1
JT Poolman, P Kriz-Kuzemenska, F Ashton, W Bibb, J Dankert, A Demina, LO Froholm, M Hassan-King, DM Jones and I Lind
An international study supported by the World Health Organization comparing
monoclonal antibodies for serotyping and serosubtyping of Neisseria
meningitidis strains was performed and the results were assessed in 1992. A
collection of 6 serotype-specific (1, 2a, 2b, 4, 14, and 15) and 12
serosubtype-specific (P1.1, P1.2, P1.4, P1.5, P1.6, P1.7, P1.9, P1.10,
P1.12, P1.14, P1.15, and P1.16) monoclonal antibodies was provided to 11
participating laboratories throughout the world. Monoclonal antibodies were
tested on 85 Neisseria meningitidis strains with known reference results.
Whole-cell enzyme-linked immunosorbent assay was used for analysis in 10 of
11 laboratories. The sensitivities and specificities of individual
serotype- and subtype- specific monoclonal antibodies were evaluated.
Differences in individual laboratories and with individual monoclonal
antibodies were assessed. Relatively large differences in sensitivities
were achieved in individual laboratories. On the contrary, the
specificities remained at high levels in all laboratories. The
sensitivities of serotype- specific monoclonal antibodies ranged from 72.0
to 100%. Individual serosubtype-specific monoclonal antibodies showed
sensitivities ranging from 64.1 to 98.1%. The most frequent reason for the
incorrect results obtained with the monoclonal antibodies were
false-negative results. The collaborative study demonstrated that some
monoclonal antibodies are not very sensitive. Another study to define the
most suitable monoclonal antibodies is planned.
Copyright © 1995 by the American Society for Microbiology. All rights reserved.
Serotypes and subtypes of Neisseria meningitidis: results of an international study comparing sensitivities and specificities of monoclonal antibodies
Laboratory of Vaccine Development and Immune Mechanisms, National Institute for Public Health and Environmental Protection, Bilthoven, The Netherlands.
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