CD40LG and infection: Such methods include the Rose Bengal, slide agglutination, and tube agglutination tests, sometimes accompanied with the use of 2-mercaptoethanol to distinguish IgG from IgM antibodies when determining the presence of active infection requiring antibiotic therapy; newer data obtained using genome-level screens suggest the potential utility of recombinant B. melitensis proteins for characterization of human infection [22]–[24].