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18 Jun 2018
(a) Some organisms are able to grow on the medium without hydrolyzing the esculin. Other organisms are able to hydrolyze esculin but darken only a portion of the medium. Are either of these types of organisms considered positive for this test? If yes, why? If no, under what circumstances would they be considered positive? EXPLAIN.
Extra information: Bile Esculin Azide agar testing S. pyogenes and E. faecalis
(b) Is darkening LESS THAN half the medium due to failure of sensitivity or specificity in this test system? EXPLAIN
(a) Some organisms are able to grow on the medium without hydrolyzing the esculin. Other organisms are able to hydrolyze esculin but darken only a portion of the medium. Are either of these types of organisms considered positive for this test? If yes, why? If no, under what circumstances would they be considered positive? EXPLAIN.
Extra information: Bile Esculin Azide agar testing S. pyogenes and E. faecalis
(b) Is darkening LESS THAN half the medium due to failure of sensitivity or specificity in this test system? EXPLAIN
Nelly StrackeLv2
19 Jun 2018
