Journal:
Article Title: Specificities and Opsonophagocytic Activities of Antibodies to Pneumococcal Capsular Polysaccharides in Sera of Unimmunized Young Children
doi: 10.1128/CDLI.9.5.1032-1038.2002
Figure Lengend Snippet: Association between IgG concentration (in micrograms per milliliter), as measured by conventional EIA or by EIA with type 22F PS absorption, and OPAs (as titers) of antibodies to type 6B, 11A, 14, and 23F Pnc PSs. Serum samples were taken from unimmunized children at 18 or 24 months of age. Horizontal lines, a titer of 4 was given to sera with undetectable OPA; vertical lines, a concentration of 1.0 μg/ml was used as a cutoff for the EIAs.
Article Snippet: Capsular PSs of S. pneumoniae serotypes 1 (lot 1211368), 11A (lot 963596), 14 (lot 2020510), 19F (lot 2033178), 22F (lots 1450702 and 2045906), and 23F (lot 1417200) were obtained from American Type Culture Collection (ATCC; Manassas, Va.).
Techniques: Concentration Assay