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Table 1 Antibody titers in sera of mice infected with H1 influenza virus

From: Cross-protective immunity against influenza A/H1N1 virus challenge in mice immunized with recombinant vaccine expressing HA gene of influenza A/H5N1 virus

Experimental group Antibody titers against H1 virus (HI)
Day 7 Day 14
rLH5-H1N1 <40 <40
rLH5 + IL-2-H1N1 <40 <40
H1N1-H1N1 320 640
PBS-H1N1 n.d. n.d.
IL-2-H1N1 <40 n.d.
  1. A titer of <40 represents the lower limit of detection.
  2. n.d. = not done. Animals did not survive until these time points.