| Yellow colony on mannitol salt agar, Gram-positive cocci, catalase positive, slide and tube coagulase positive, gelatin hydrolysis positive, beta-hemolysis in blood agar, methyl red test and Voges-Proskauer test positive, nitrate reduction positive | S. aureus |
| Gram-positive cocci, catalase negative, beta-hemolysis in blood agar, bacitracin sensitive, bile-esculin test negative, L-pyrrolidonyl-β-naphthylamide (PYR) test positive | S. pyogenes |
| Gram-negative bacilli, oxidase positive, catalase positive, greenish yellow colonies on nutrient agar, citrate positive, motile, indole negative, urease negative, lactose non-fermenting, hydrogen sulphide negative, gas negative | P. aeruginosa |
| Gram-negative bacilli, catalase positive, oxidase negative, mucoid colony, nonmotile, urease positive, citrate positive, indole negative, lactose fermenting, gas positive, hydrogen sulphide negative | K. pneumoniae |
| Gram-negative bacilli, catalase positive, oxidase negative, motile, urease negative, citrate negative, indole positive, lactose fermenting, gas positive, hydrogen sulphide negative | E. coli |
| Gram-negative bacilli, catalase positive, oxidase negative, citrate positive, lactose non-fermenting, indole negative, nonmotile, gas negative, hydrogen sulphide negative | Acinetobacter spp. |
| Gram-negative bacilli, oxidase negative, catalase positive, lactose fermenting, indole negative, motile, urease differential, hydrogen sulphide positive, gas positive, citrate positive | C. freundii |
| Gram-negative bacilli, oxidase negative, catalase positive, lactose non-fermenting, indole positive, motile, urease differential, hydrogen sulphide negative, gas positive, citrate positive | C. koseri |
| Gram-negative bacilli, oxidase negative, catalase positive, lactose non-fermenting, indole negative, motile, urease positive, hydrogen sulphide positive, gas positive, citrate positive | P. mirabilis |
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