Table 2: Morphological and physiological characteristic of clinical isolates.


Clinical isolates no. Starch hydrolysis Blood hemolysis 6.5 NaCl % MacConkey Agar Manitol salt agar Baird-Parker Medium Trypticase soy agar

1 +ve Gamma -hemolysis +ve +ve −ve −ve +ve y
2 +ve Gamma -hemolysis +ve +ve −ve −ve +ve y
3 −ve Beta-hemolysis +ve +ve −ve −ve +ve G
4 −ve Beta-hemolysis +ve +ve −ve −ve +ve y
5 −ve Gamma -hemolysis +ve +ve −ve −ve +ve y
6 −ve Gamma -hemolysis +ve +ve −ve −ve +ve y
7 −ve Gamma -hemolysis +ve +ve −ve −ve +ve y
8 −ve Gamma -hemolysis +ve +ve −ve +ve/yas +ve y
9 −ve Gamma -hemolysis +ve +ve −ve −ve +ve y
10 +ve Beta-hemolysis +ve −ve −ve −ve +ve C
11 −ve Beta-hemolysis +ve +ve −ve +ve/yas +ve y
12 −ve Beta-hemolysis +ve +ve −ve −ve +ve G
13 +ve Beta-hemolysis +ve +ve +ve +ve/yas +ve y
14 −ve Beta-hemolysis +ve −ve −ve +ve/no +ve C
15 −ve Beta-hemolysis +ve +ve +ve −ve +ve y

• MacConkey Agar (Positive = lactose fermentation) • Manitol salt agar (positive = yellow colour mannitol fermentation) • Baird-Parker Medium (positive yas = Blackening with clear zone & positive/no = Blackening with nuclear zone) • Trypticase soy agar (+ve y = growth yellow & +ve G = growth green & +ve g = growth gray and +ve C = growth creamy).