STREPswift Novamed STREPswift is a rapid means intended for the presumptive identification of streptococci and related genera (gram-positive, catalase-negative cocci) from primary culture. The test relies on recognition of activity of pyroglutamate aminopeptidase (PYR), leucine aminopeptidase (LAP), and ß-glucosidase (esculinase; ESC). Related Documents Instructions For Use - STREPswift # BI-601