Figure 3.

Humoral response to H1N1 GM19 influenza infection in ferrets and the Golden Syrian hamster. Sera were collected from ferrets at baseline, days 4, 7, 11 and 14 post-infection; (a) haemagglutination inhibition and (b) neuraminidase inhibition were assessed. All ferrets, irrespective of dose received, seroconverted by 7-day post-infection. No differences were observed between doses. Sera were collected from hamsters at baseline and days 4 and 14 post-infection; (c) haemagglutination inhibition and (d) neuraminidase inhibition were assessed. All hamsters irrespective of dose received seroconverted by 14 days post-infection. A significant difference at day 14 post-infection was observed between young and older hamsters for neuraminidase inhibition (** p = 0.0028, unpaired t-test).