data/rag/knowledge_base/Clostridium/botulinum.json

{
  "schema_version": "1.0",
  "level": "species",
  "genus": "Clostridium",
  "species": "botulinum",

  "overview": {
    "short": "Clostridium botulinum is a Gram-positive, anaerobic, spore-forming rod that produces botulinum neurotoxin.",
    "clinical_context": "Responsible for botulism, a severe neuroparalytic illness caused by toxin ingestion or production in vivo."
  },

  "expected_fields": {
    "Gram Stain": "Positive",
    "Shape": "Rods",
    "Motility": "Positive",
    "Capsule": "Negative",
    "Spore Formation": "Positive",
    "Haemolysis": "Variable",
    "Haemolysis Type": "Variable",
    "Media Grown On": [
      "Blood Agar",
      "Egg Yolk Agar"
    ],
    "Colony Morphology": [
      "Irregular",
      "Spreading"
    ],
    "Oxygen Requirement": "Anaerobic",
    "Growth Temperature": "10//48",
    "Catalase": "Negative",
    "Oxidase": "Negative",
    "Indole": "Variable",
    "Urease": "Negative",
    "Citrate": "Negative",
    "Methyl Red": "Variable",
    "VP": "Negative",
    "H2S": "Variable",
    "DNase": "Negative",
    "ONPG": "Negative",
    "Coagulase": "Negative",
    "Gelatin Hydrolysis": "Positive",
    "Esculin Hydrolysis": "Negative",
    "Nitrate Reduction": "Variable",
    "NaCl Tolerant (>=6%)": "Negative",
    "Lipase Test": "Positive",
    "Lysine Decarboxylase": "Negative",
    "Ornithine Decarboxylase": "Negative",
    "Ornitihine Decarboxylase": "Negative",
    "Arginine dihydrolase": "Negative",
    "Glucose Fermentation": "Variable",
    "Lactose Fermentation": "Negative",
    "Sucrose Fermentation": "Variable",
    "Maltose Fermentation": "Variable",
    "Mannitol Fermentation": "Negative",
    "Sorbitol Fermentation": "Negative",
    "Xylose Fermentation": "Variable",
    "Rhamnose Fermentation": "Negative",
    "Arabinose Fermentation": "Variable",
    "Raffinose Fermentation": "Negative",
    "Trehalose Fermentation": "Variable",
    "Inositol Fermentation": "Negative",
    "Gas Production": "Variable",
    "TSI Pattern": "Unknown",
    "Colony Pattern": "Unknown",
    "Pigment": "None",
    "Motility Type": "Peritrichous"
  },

  "species_markers": [
    {
      "field": "Lipase Test",
      "value": "Positive",
      "importance": "high",
      "notes": "Supports identification of proteolytic C. botulinum groups."
    },
    {
      "field": "Motility",
      "value": "Positive",
      "importance": "medium",
      "notes": "Helps differentiate from non-motile clostridia such as C. perfringens."
    },
    {
      "field": "Glucose Fermentation",
      "value": "Variable",
      "importance": "medium",
      "notes": "Reflects heterogeneity across toxin groups."
    }
  ],

  "common_confusions": [
    {
      "species": "Clostridium sporogenes",
      "reason": "Genetically related with overlapping biochemical and enzymatic traits."
    }
  ],

  "when_to_question_identification": [
    "Lipase negativity argues against proteolytic C. botulinum.",
    "Strong carbohydrate fermentation suggests another clostridial species.",
    "Non-spore-forming phenotype is inconsistent."
  ],

  "recommended_next_tests": [
    {
      "test": "Botulinum toxin detection",
      "reason": "Definitive identification and clinical relevance.",
      "api_kit": "Not applicable"
    },
    {
      "test": "Lipase activity on Egg Yolk Agar",
      "reason": "Supports differentiation of proteolytic strains.",
      "api_kit": "API 20A"
    },
    {
      "test": "MALDI-TOF MS",
      "reason": "Species-level identification when databases are appropriate.",
      "api_kit": "Not applicable"
    }
  ]
}