Figure 4From: Oral vaccination with Trichinella spiralis DNase II DNA vaccine delivered by attenuated Salmonella induces a protective immunity in BALB/c miceTotal intestinal IgA (A) of vaccinated mice assayed by sandwich ELISA and specific sIgA assayed by indirect ELISA using rTsDNase II (B) and AW ES antigens (C). The results are the mean ± SD of 5 mice of each group, and asterisk indicates significant differences (P < 0.01).Back to article page