Body weights did not differ between wild type and SAA3−/− mice prior to infection as a consequence of adult-onset weight gain (wildtype 27.55 ± 0.69 g, SAA3−/− 26.80 ± 1.05 g; p = 0.56) or following influenza infection (wildtype 21.24 ± 0.61 g, SAA3−/− 20.24 ± 0.77 g; p = 0.33). The gene discussed is SAA3P; the disease is influenza.