| { |
| "schema_version": "1.0", |
| "level": "species", |
| "genus": "Acinetobacter", |
| "species": "pittii", |
|
|
| "overview": { |
| "short": "Acinetobacter pittii is a Gram-negative, aerobic, non-fermentative coccobacillus belonging to the Acinetobacter baumannii complex.", |
| "clinical_context": "Associated with opportunistic infections including bloodstream, respiratory, and wound infections, generally less virulent than A. baumannii." |
| }, |
|
|
| "expected_fields": { |
| "Gram Stain": "Negative", |
| "Shape": "Coccobacilli", |
| "Motility": "Negative", |
| "Capsule": "Variable", |
| "Spore Formation": "Negative", |
| "Haemolysis": "Negative", |
| "Haemolysis Type": "None", |
| "Media Grown On": [ |
| "Blood Agar", |
| "MacConkey Agar" |
| ], |
| "Colony Morphology": [ |
| "Smooth", |
| "Opaque", |
| "Grey-White" |
| ], |
| "Oxygen Requirement": "Aerobic", |
| "Growth Temperature": "20//40", |
| "Catalase": "Positive", |
| "Oxidase": "Negative", |
| "Indole": "Negative", |
| "Urease": "Variable", |
| "Citrate": "Variable", |
| "Methyl Red": "Negative", |
| "VP": "Negative", |
| "H2S": "Negative", |
| "DNase": "Variable", |
| "ONPG": "Negative", |
| "Coagulase": "Negative", |
| "Gelatin Hydrolysis": "Variable", |
| "Esculin Hydrolysis": "Negative", |
| "Nitrate Reduction": "Negative", |
| "NaCl Tolerant (>=6%)": "Variable", |
| "Lipase Test": "Variable", |
| "Lysine Decarboxylase": "Negative", |
| "Ornithine Decarboxylase": "Negative", |
| "Ornitihine Decarboxylase": "Negative", |
| "Arginine dihydrolase": "Negative", |
| "Glucose Fermentation": "Negative", |
| "Lactose Fermentation": "Negative", |
| "Sucrose Fermentation": "Negative", |
| "Maltose Fermentation": "Negative", |
| "Mannitol Fermentation": "Variable", |
| "Sorbitol Fermentation": "Negative", |
| "Xylose Fermentation": "Negative", |
| "Rhamnose Fermentation": "Negative", |
| "Arabinose Fermentation": "Negative", |
| "Raffinose Fermentation": "Negative", |
| "Trehalose Fermentation": "Negative", |
| "Inositol Fermentation": "Negative", |
| "Gas Production": "Negative", |
| "TSI Pattern": "K/K", |
| "Colony Pattern": "Unknown", |
| "Pigment": "None", |
| "Motility Type": "None" |
| }, |
|
|
| "species_markers": [ |
| { |
| "field": "Growth Temperature", |
| "value": "40//40", |
| "importance": "high", |
| "notes": "Typically does not grow at the higher temperatures tolerated by A. baumannii." |
| }, |
| { |
| "field": "NaCl Tolerant (>=6%)", |
| "value": "Variable", |
| "importance": "medium", |
| "notes": "Reduced salt tolerance compared to A. baumannii." |
| } |
| ], |
|
|
| "common_confusions": [ |
| { |
| "species": "Acinetobacter baumannii", |
| "reason": "Part of the A. baumannii complex with overlapping biochemical characteristics." |
| }, |
| { |
| "species": "Acinetobacter calcoaceticus", |
| "reason": "Genetically related environmental species within the complex." |
| } |
| ], |
|
|
| "when_to_question_identification": [ |
| "Growth at ≥44°C suggests A. baumannii.", |
| "Strong salt tolerance supports A. baumannii over A. pittii." |
| ], |
|
|
| "recommended_next_tests": [ |
| { |
| "test": "MALDI-TOF MS", |
| "reason": "Primary method for differentiating species within the A. baumannii complex." |
| }, |
| { |
| "test": "Molecular identification", |
| "reason": "Definitive resolution when clinical significance is high." |
| } |
| ] |
| } |
