Y Chromosome Microdeletion Yersinia enterocolitica Antibodies, IgA and IgG by Immunoblot Yersinia enterocolitica Antibodies, IgA, IgG, and IgM by Immunoblot Yersinia enterocolitica Antibody, IgA by Immunoblot Yersinia enterocolitica Antibody, IgG by Immunoblot Yersinia enterocolitica Antibody, IgM by Immunoblot