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Fig 1: Clinical trial profile. CPE = Chlorella pyrenoidosa extract.
Fig. 2: Geometric mean titres of hemagglutination inhibition antibodies before (day 0) and 7 and 21 days after vaccination in subjects up to 55 years of age and those over 55 years of age receiving placebo (diamonds with dotted lines), 200 mg CPE (squares with dashed lines) or 400 mg CPE (triangles with solid lines). A: Antibody responses against influenza A/New Caledonia. B: Antibody responses against influenza A/Panama. C: Antibody responses against influenza B/Yamanashi.