Extended Data Fig. 5: Protective effects associated with a fourfold increase in antibody level among children.
From: Novel correlates of protection against pandemic H1N1 influenza A virus infection
Results are shown for three different sets of assays. a, PCR-confirmed infection. b, Symptomatic influenza (n = 101 individuals). Assay set 1 combines hemagglutination inhibition, hemagglutinin stalk and neuraminidase ELISAs. Assay set 2 combines full-length hemagglutinin and neuraminidase ELISAs. Assay set 3 combines hemagglutination inhibition and neuraminidase ELISAs. Adjusted ORs for the single-assay model are shown as green squares and the multi-assay model as orange circles. The black lines denote the 95% CIs.
