CD79A and brucellosis: Thus, IgA in individuals with acute tularemia specifically recognized F. tularensis LPS (Fig 1E), melioidosis IgA specifically recognized B. pseudomallei LPS (Fig 1F), brucellosis IgA specifically recognized LPS from B. melitensis (Fig 1G) and cholera IgA specifically recognized V. cholerae LPS (Fig 1H).