Figure 2

Virus excretion in nasal secretions from D-3 to D11. A Individual results of M-gene RT-qPCR on nasal swabs taken on infected pigs. Black squares indicate a swIAV positive sample and white squares indicate a swIAV negative sample. The crossed-out boxes indicate that the pig was dead. B Average of viral RNA amounts obtained in infected groups. * indicates that the group is significantly different from the other three. C Global amount of individual viral shedding. AUC area under the curve. The line indicates the mean AUC for the group. Significant differences between groups are indicated by different letters. For graphical representation purposes, value 1 has been assigned to negative samples. H1N1 and H1N1 VACC: groups challenged at D0 with the 272/20-H1avN1 strain (HA clade 1C.2.1). H1N2 and H1N2 VACC: groups challenged at D0 with the 154/20-H1avN2 strain (HA clade 1C.2.4).