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. 2018 Apr 18;218(4):614–623. doi: 10.1093/infdis/jiy214

Figure 3.

Figure 3.

Presence of antibody-dependent cellular cytotoxicity (ADCC)–mediating antibodies reactive with a homologous and an antigenically distinct H5N1 virus. A and B, Presence of ADCC-mediating antibodies is expressed as a percentage of degranulating natural killer cells at a set serum dilution. Sera obtained at the indicated time points were tested against VN/04 (A) and IND/05 (B). *P < 0001 and **P = .0342, compared with values at the reference time point, week 0. Keys indicate the treatment groups; geometric mean titers are displayed as bars. C, Correlation between ADCC-mediating antibodies specific for VN/04 and IND/05. The key indicates weeks during which specimens were obtained for analysis. Linear regression r2 = 0.7584. PFU, plaque-forming units.