Update data/rag/knowledge_base/Clostridium/genus.json

data/rag/knowledge_base/Clostridium/genus.json

@@ -1,76 +1,127 @@
 {
+  "schema_version": "1.0",
+  "level": "genus",
   "genus": "Clostridium",
-  "taxonomy": {
-    "family": "Clostridiaceae",
-    "order": "Clostridiales",
-    "class": "Clostridia",
-    "phylum": "Firmicutes"
+
+  "overview": {
+    "short": "Clostridium species are Gram-positive, anaerobic, spore-forming rods widely distributed in soil, water, and the gastrointestinal tracts of humans and animals.",
+    "clinical_context": "Includes major toxin-producing pathogens responsible for foodborne illness, gas gangrene, tetanus, and botulism."
   },
-  "overview": "Clostridium is a large genus of strictly anaerobic, Gram-positive, spore-forming rods. Species range from benign environmental saprophytes to severe toxin-mediated human pathogens. Spores allow persistence in soil, dust, wounds, and contaminated food. The genus historically included many species but has been reclassified; only classic toxigenic and gas-gangrene–associated organisms remain in Clostridium sensu stricto.",
-  "key_traits": [
-    "Gram-positive rods (may appear Gram-variable in old cultures)",
-    "Strict anaerobes",
-    "Spore-forming (terminal, subterminal, or central spores)",
-    "Catalase negative",
-    "Motility variable by species",
-    "Fermentative metabolism producing gas and volatile fatty acids",
-    "Many species produce potent exotoxins",
-    "Do not grow in 6.5% NaCl",
-    "Indole variable"
-  ],
-  "ecology": "Widely distributed in soil, decaying vegetation, animal intestines, and sediments. Many species are environmental; some colonize humans transiently.",
-  "pathogenicity": "Clostridium species cause a variety of diseases: tetanus (C. tetani), botulism (C. botulinum), gas gangrene and myonecrosis (C. perfringens), food poisoning, and invasive soft tissue infections. Disease severity often results from toxins rather than bacterial invasion.",
-  "genus_level_biochemistry": {
-    "general_tendencies": [
-      "Strict anaerobic growth.",
-      "Spore formation visible on Gram stain.",
-      "Ferment carbohydrates and proteins variably.",
-      "Many species produce lecithinase, lipase, or proteolytic enzyme activity.",
-      "Toxin detection required for diagnosis in key pathogens."
+
+  "expected_fields": {
+    "Gram Stain": "Positive",
+    "Shape": "Rods",
+    "Motility": "Variable",
+    "Capsule": "Variable",
+    "Spore Formation": "Positive",
+    "Haemolysis": "Variable",
+    "Haemolysis Type": "Variable",
+    "Media Grown On": [
+      "Blood Agar",
+      "Egg Yolk Agar"
     ],
-    "non_definitive_tests": [
-      "Gram variability increases with culture age.",
-      "Spore position not always visible in fresh isolates."
-    ]
-  },
-  "genus_differentiation": {
-    "from_close_genera": [
-      "Clostridioides difficile has yellow ground-glass colonies and distinct toxins A/B; classic Clostridium species do not.",
-      "Paeniclostridium sordellii is lecithinase positive and causes toxic shock distinct from C. perfringens.",
-      "Peptoclostridium are more aerotolerant and non-sporeforming.",
-      "Bacteroides and Fusobacterium are Gram-negative anaerobes (not spore-formers)."
+    "Colony Morphology": [
+      "Irregular",
+      "Grey"
     ],
-    "key_rag_filters": [
-      "Strict anaerobic Gram-positive spore-former → Clostridium or Clostridioides.",
-      "Terminal drumstick spore → strongly suggests C. tetani.",
-      "Lecithinase-positive on egg-yolk agar → C. perfringens or related species.",
-      "Lipase-positive (iridescent sheen) → points toward some C. botulinum groups."
-    ]
+    "Oxygen Requirement": "Anaerobic",
+    "Growth Temperature": "20//45",
+    "Catalase": "Negative",
+    "Oxidase": "Negative",
+    "Indole": "Variable",
+    "Urease": "Negative",
+    "Citrate": "Negative",
+    "Methyl Red": "Variable",
+    "VP": "Negative",
+    "H2S": "Variable",
+    "DNase": "Variable",
+    "ONPG": "Negative",
+    "Coagulase": "Negative",
+    "Gelatin Hydrolysis": "Variable",
+    "Esculin Hydrolysis": "Variable",
+    "Nitrate Reduction": "Variable",
+    "NaCl Tolerant (>=6%)": "Negative",
+    "Lipase Test": "Variable",
+    "Lysine Decarboxylase": "Negative",
+    "Ornithine Decarboxylase": "Negative",
+    "Ornitihine Decarboxylase": "Negative",
+    "Arginine dihydrolase": "Negative",
+    "Glucose Fermentation": "Positive",
+    "Lactose Fermentation": "Variable",
+    "Sucrose Fermentation": "Variable",
+    "Maltose Fermentation": "Variable",
+    "Mannitol Fermentation": "Variable",
+    "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": "Variable"
   },
-  "diagnostics": {
-    "typical_lab_findings": [
-      "Spore-forming Gram-positive rods",
-      "Rapid or slow gas production depending on species",
-      "Lecithinase or lipase activity",
-      "Characteristic colony morphology (swarming, boxcar rods, etc.)"
-    ],
-    "important_tests": [
-      "Nagler reaction for lecithinase (C. perfringens)",
-      "Toxin assays (ELISA, mouse bioassay, PCR)",
-      "Anaerobic culture on blood or egg-yolk agar",
-      "MALDI-TOF MS"
-    ],
-    "confirmation_methods": [
-      "Toxin gene PCR",
-      "Toxin detection (gold standard for tetanus and botulism)",
-      "MALDI-TOF MS",
-      "Whole-genome sequencing for strain typing"
-    ]
+
+  "field_notes": {
+    "Spore Formation": "A defining feature of the genus, aiding survival in harsh environments.",
+    "Oxygen Requirement": "Obligate anaerobes; exposure to oxygen inhibits vegetative growth.",
+    "Haemolysis": "Highly species-dependent, ranging from non-haemolytic to strongly beta-haemolytic."
   },
-  "notes": "Clostridium is now a much smaller genus due to modern reclassification; many former species are now in new genera.",
-  "references": [
-    "Manual of Clinical Microbiology",
-    "CDC Botulism and Tetanus Guidelines",
-    "Anaerobe taxonomy literature"
+
+  "key_differentiators": [
+    {
+      "field": "Spore Formation",
+      "expected": "Positive",
+      "distinguishes_from": ["Bacteroides", "Fusobacterium"],
+      "notes": "Spore formation differentiates Clostridium from non-spore-forming anaerobes."
+    },
+    {
+      "field": "Oxygen Requirement",
+      "expected": "Anaerobic",
+      "distinguishes_from": ["Bacillus"],
+      "notes": "Strict anaerobiosis distinguishes Clostridium from aerobic or facultative spore-formers."
+    }
+  ],
+
+  "common_confusions": [
+    {
+      "genus": "Clostridioides",
+      "reason": "Historical grouping and shared anaerobic spore-forming morphology."
+    },
+    {
+      "genus": "Paenibacillus",
+      "reason": "Spore-forming rods that may overlap morphologically if oxygen tolerance is misinterpreted."
+    }
+  ],
+
+  "when_to_question_identification": [
+    "Sustained aerobic growth suggests Bacillus or Paenibacillus rather than Clostridium.",
+    "Non-spore-forming phenotype argues against Clostridium.",
+    "Strong oxidase or catalase positivity suggests misidentification."
+  ],
+
+  "recommended_next_tests": [
+    {
+      "test": "Anaerobic culture confirmation",
+      "reason": "Ensures obligate anaerobic growth requirement is met."
+    },
+    {
+      "test": "Toxin detection assays",
+      "reason": "Critical for identifying clinically significant toxin-producing species."
+    },
+    {
+      "test": "MALDI-TOF MS",
+      "reason": "Reliable genus- and species-level identification across clostridia."
+    }
+  ],
+
+  "supported_species": [
+    "botulinum",
+    "sporogenes",
+    "perfringens",
+    "tetani"
   ]
-}
+}