Figure 1
Clinical signs collected daily from D0 to D11. A Sums of individual clinical scores. Behavior and respiratory signs registered for each pig (n = 6 per group) were scored as followed: 0 = no clinical signs, 1 = decreased liveliness, 2 = rapid breathing, 3 = rapid breathing + decreased liveliness, then individual scores were added together for giving a total score for the group. B Numbers (nb) of coughs and (C) nb of sneezes heard in each room in 15 min. D Mean daily weight gains (± standard deviation) of pigs between D0 and D4. Significant differences between groups are indicated by different letters. * Only 5 pigs in the H1N2 VACC group from D2, instead of 6. 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).