Two hundred forty-eight human immunodeficiency virus (HIV)-positive and 496 HIV-negative subjects in Uganda were tested by HerpeSelect herpes simplex virus type 2 enzyme-linked immunosorbent assay (ELISA) and Western blotting to optimize the ELISA for use in this population. A higher index cutoff value was required for optimal sensitivity and specificity, and overall performance of the assay was not affected by HIV status.

Single colonies of beta-hemolytic streptococci could be grouped by antibodycoated latex bead agglutination or coagglutination with staphylococci coated with antibody after incubation of the colonies with mutanolysin. This simple and quick procedure provided an enzymatic means of enhancing the sensitivity of tests such as Phadebact and SeroSTAT.