Fig. 6From: Cloning and expression of a Trichinella spiralis putative glutathione S-transferase and its elicited protective immunity against challenge infectionsAntibody responses in mice immunization with rTspGST. a Specific anti-rTspGST IgG levels in the sera of vaccinated mice at different time intervals after vaccination. b Serum levels of the subclasses IgG1 and IgG2a. The OD values shown for each group are the mean ± SD of the antibody levels from 10 animals. The vaccination time points are marked with an arrow (↑)Back to article page