Beta-glucuronidase test (MUG Test): To identify Escherichia coli. Escherichia coli produces the enzyme beta-D-glucuronidase, which hydrolyzes beta-D-glucopyranosid. Bacteremia, toxic-shock syndrome and necrotizing fasciitis. Normally, infection by group A Streptococci results in mild symptoms. However, these bacteria can also cause a bacteremia resulting in a much more severe disease which can sometimes be fatal. My post on the cognitive dissonance in Florida about evolution brought a lot of comments, including one…