Table 2.

Reactivities of 24067 parent and variant cells with three MAbs

MAbParentVariant
IF patternAgglutination endpoint (μg/ml)IF patternAgglutination
2H1 (IgG1)Annular3.9Punctate>500
12A1 (IgM)Annular3.9Punctate31.25
13F1 (IgM)Punctate31.2Punctate>500