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Table 2 Serum and BAL fluid A/Sw/Eng/1353/09 specific HAI titres

From: Distinct immune responses and virus shedding in pigs following aerosol, intra-nasal and contact infection with pandemic swine influenza A virus, A(H1N1)09

Group Animal Serum BALF
Pre-challenge 14 dpi/16 dpc 14 dpi/16 dpc
AERO low A 16 32 16
B 4 64 32
C 8 64 32
D 8 32 8
IN low E 16 64 16
F 16 16 16
G 8 128 16
H 16 32 16
AERO high I 16 256 64
J 8 256 64
K 16 256 64
IN high L 8 32 16
M 8 64 16
N 16 128 16
IN contact O 16 256 32
P 16 64 16
Q 16 64 16
AERO contact R 8 128 16
S 16 128 32
T 8 256 32
  1. HA titres were determined in serum and BAL fluid at day of sacrifice (14 or 16 dpc) using 4 HAI units of A/Sw/Eng/1353/09 virus. Results shown are the mean of all individuals in each of the groups ± standard deviation. Serum from pigs immunized with commercial A(H1N1)pdm09 vaccine Pandemrix (GSK) and challenged with A/England/195/09 (pdmH1N1) virus as previously described [11] was used as a positive control and gave a titer of 2048.