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. Author manuscript; available in PMC: 2020 Mar 7.
Published in final edited form as: Vaccine. 2019 Feb 2;37(11):1533–1539. doi: 10.1016/j.vaccine.2018.12.071

Fig. 1. Antibody responses in pigs against NY/11 and IA/14 induced by monovalent and bivalent RP vaccines pre- and post-infection.

Fig. 1.

(A) Serum hemagglutination inhibition (HI) geometric mean titers against IA/14 and NY/11 at 0 and 5 dpi from all vaccinated groups and the sham vaccinated pigs (RP-GFP). (B) Whole virus IgA and IgG ELISA’s were performed using BALF from 5 dpi with IA/14 and NY/11 as antigens. Groups of pigs are labeled according to vaccine use. HI titers that differed by more than two serial dilutions within 0 or 5 dpi are marked with an asterisk (A). Data presented as mean optical density (O.D.) or geometric mean titers ± standard error of the mean. Cut-off values (dotted line) for ELISA data was calculated as the mean of blank wells plus three times the standard deviation. A black line within each graph separates groups according to challenge strain (NY/11 on the left, IA/14 on the right).