Abstract:
:An enzyme-linked immunoassay (EIA) is described and evaluated which quantitates human antibodies to serotype specific S. pneumoniae polysaccharide (PnPs) in human sera. Based on the observations previously described by Koskela (1), native PnPs are used as coating antigens and sera are absorbed with a soluble pneumococcal absorbant material containing C-polysaccharide (CPs) to ensure measurement of serotype specific anti-PnPs antibodies. The robustness of this method was evaluated by ten laboratories using the same reagents, protocol, and five human serum samples. Reproducible antibody values were obtained for IgM, IgG, and IgA antibodies to five different PnPs serotypes, 3, 6B, 14, 19F, and 23F. The overall mean percent coefficients of variation in this interlaboratory study for all five selotype specific anti-PnPs determinations with the five coded sera were 30% for IgG, 3/% for IgM, and 36% for IgA. This assay can be standardized for quantitation of serotype specific anti-PnPs antibodies, allowing comparison of antibody values in vaccine trials evaluating pneumococcal vaccines.
journal_name
Immunol Investjournal_title
Immunological investigationsauthors
Quataert S,Martin D,Anderson P,Giebink GS,Henrichsen J,Leinonen M,Granoff DM,Russell H,Siber G,Faden H,Barnes D,Madore DVdoi
10.1081/imm-100105064subject
Has Abstractpub_date
2001-08-01 00:00:00pages
191-207issue
3eissn
0882-0139issn
1532-4311journal_volume
30pub_type
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