| Standard strain | Recovered isolate | Phenotypic test |
| On B.A: small, gray and rough colonies with haemolysis appeared under Neath colonies. On M.A: growth colonies appeared dark pink like pin point. Staining : G−, cocobacili, single or pairs and clear bipolar with methylen blue | On B.A: small, gray and rough or smooth colonies with beta haemolysis around colony. On M.A: lung isolate appeared as a pink pin point, while nasal isolate appeared as a pink mucoid Staining: G-, cocobacili, single or pairs and clear bipolar with methylen blue. | Colony and staining characteristic |
| + | + | Indole test |
| − | _ | Simmons citrate |
| _ | _ | SIM |
| yellow/yellow | yellow/yellow | TSI |
| − | − | Gelatinase test |
| + | + | Oxidase test |
| + | + | Catalase test |
| − | − | Urea test |
| + | + | Nitrate reduction test |
| + | + | Glucose acid |
| + | (except nasal isolate−) + | Lactose acid |
| weak + | − | Insitol acid |
| + | − | Sorbitol acid |
| + | (except nasal isolate+)− | Xylose acid |
| + | + | Rhamnose acid |
| + | − | Mannitol acid |
| + | − | Arabinose acid |
| + | − | Maltose acid |