Fig. 2From: Development and application of an indirect ELISA for the detection of antibodies to porcine epidemic diarrhea virus based on a recombinant spike proteinDetermination of IgA and IgG in the sera of PEDV immunized pigs. The sera of PEDV immunized pigs were tested by this S1 indirect ELISA at 7, 14, 21, 28, 35, 42 and 49Â day post-inoculation (dpi). Both the IgA and the IgG were positive at 7 dpi. The IgG could exist in the sera for longer time than IgA. Different letters (a, and b) indicate significant difference between the groupsBack to article page