FIG 1.
(A) Antiviral activity in 24 BAL fluid samples against 2 pdmH1N1 strains (102/2009 and 104/2009) and 4 seasonal influenza virus strains: Siriraj-03/2006(sH1N1), Siriraj-12/2006(sH1N1), Siriraj-03/2004(H3N2), and Siriraj-04/2003(H3N2) using the neutralization (NT) assay. (B) The hemagglutination inhibition (HI) assay was run in duplicate with and without Ca2+. HI titers were derived from 12 BAL fluid samples. HI and NT titers are shown as the geometric mean with 95% CI (*, P < 0.05; **, P < 0.005; ***, P < 0.0005; t test). Samples that were reused in more than one experiment are numbered.