The streptococci are Gram-positive spherical bacteria that characteristically form pairs or chains during growth, They are differentiated from Staphylococci by being catalase-negative, They are widely distributed in nature, Some are members of the normal...
Staphylococcus is a Gram-positive bacteria in the family Staphylococcaceae from the order Bacillales, Under the microscope, they appear spherical (cocci), and form in grape-like clusters. Staphylococcus includes at least 40 species, nine have two...