Update data/rag/knowledge_base/Erysipelothrix/rhusiopathiae.json

data/rag/knowledge_base/Erysipelothrix/rhusiopathiae.json

@@ -1,53 +1,125 @@
 {
+  "schema_version": "1.0",
+  "level": "species",
   "genus": "Erysipelothrix",
   "species": "rhusiopathiae",
-  "full_name": "Erysipelothrix rhusiopathiae",
-  "clinical_significance": "The primary human pathogen in the genus. Causes erysipeloid skin infection, systemic disease, septic arthritis, and endocarditis. Infection is strongly associated with occupational exposure to fish, swine, poultry, and animal products.",
-  "phenotype_profile": {
-    "morphology": "Slender Gram-positive rods, often filamentous; may appear gram-variable.",
-    "culture": "Small, clear to grayish colonies; may show alpha-hemolysis; grows best under microaerophilic or CO2-enriched conditions.",
-    "biochemical": [
-      "Catalase negative",
-      "Non-motile",
-      "H2S positive on TSI slant (major diagnostic feature)",
-      "Indole negative",
-      "Urease negative",
-      "Fermentation of glucose without gas",
-      "Resistant to salt and environmental stress"
-    ]
+
+  "overview": {
+    "short": "Erysipelothrix rhusiopathiae is a Gram-positive, non-spore-forming, non-motile short rod classically associated with zoonotic exposure and erysipeloid infections.",
+    "clinical_context": "Most commonly causes localized erysipeloid after fish/meat/animal handling; can rarely cause bacteremia and endocarditis."
   },
-  "differentiation": {
-    "from close species": [
-      "Produces H2S; E. tonsillarum typically produces weaker or absent H2S reactions.",
-      "More commonly isolated from humans than E. tonsillarum.",
-      "Associated with erysipeloid lesions and endocarditis."
+
+  "expected_fields": {
+    "Gram Stain": "Positive",
+    "Shape": "Short Rods",
+    "Motility": "Negative",
+    "Capsule": "Negative",
+    "Spore Formation": "Negative",
+    "Haemolysis": "Variable",
+    "Haemolysis Type": "Variable",
+    "Media Grown On": [
+      "Blood Agar"
     ],
-    "from other genera": [
-      "Non-motile and catalase negative distinguishes from Listeria.",
-      "H2S production distinguishes from Corynebacterium and Arcanobacterium.",
-      "No spores differentiates from Bacillus."
-    ]
+    "Colony Morphology": [
+      "Small",
+      "Grey",
+      "Translucent",
+      "Smooth"
+    ],
+    "Oxygen Requirement": "Facultative Anaerobe",
+    "Growth Temperature": "20//42",
+    "Catalase": "Negative",
+    "Oxidase": "Negative",
+    "Indole": "Negative",
+    "Urease": "Negative",
+    "Citrate": "Negative",
+    "Methyl Red": "Positive",
+    "VP": "Negative",
+    "H2S": "Positive",
+    "DNase": "Negative",
+    "ONPG": "Negative",
+    "Coagulase": "Negative",
+    "Gelatin Hydrolysis": "Negative",
+    "Esculin Hydrolysis": "Negative",
+    "Nitrate Reduction": "Negative",
+    "NaCl Tolerant (>=6%)": "Negative",
+    "Lipase Test": "Negative",
+    "Lysine Decarboxylase": "Negative",
+    "Ornithine Decarboxylase": "Negative",
+    "Ornitihine Decarboxylase": "Negative",
+    "Arginine dihydrolase": "Negative",
+    "Glucose Fermentation": "Positive",
+    "Lactose Fermentation": "Negative",
+    "Sucrose Fermentation": "Variable",
+    "Maltose Fermentation": "Negative",
+    "Mannitol Fermentation": "Negative",
+    "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": "Unknown",
+    "Colony Pattern": "Unknown",
+    "Pigment": "None",
+    "Motility Type": "None"
   },
-  "virulence_factors": [
-      "Neuraminidase facilitating tissue invasion",
-      "Surface proteins aiding adherence",
-      "Ability to survive intracellularly",
-      "Resistance to phagocytosis"
+
+  "species_markers": [
+    {
+      "field": "H2S",
+      "value": "Positive",
+      "importance": "high",
+      "notes": "A strong discriminator among Gram-positive short rods when present."
+    },
+    {
+      "field": "Motility",
+      "value": "Negative",
+      "importance": "high",
+      "notes": "Supports Erysipelothrix over motile short rods like Listeria."
+    },
+    {
+      "field": "Catalase",
+      "value": "Negative",
+      "importance": "high",
+      "notes": "Separates from catalase-positive Gram-positive rods in mixed differential."
+    }
   ],
-  "confirmation_methods": [
-      "MALDI-TOF MS",
-      "TSI H2S production",
-      "16S rRNA sequencing"
+
+  "common_confusions": [
+    {
+      "genus": "Listeria",
+      "reason": "Similar morphology and blood agar growth; Listeria is motile and catalase positive."
+    },
+    {
+      "genus": "Corynebacterium",
+      "reason": "Gram-positive rod morphology; biochemical overlap may occur in minimal panels."
+    }
   ],
-  "treatment_notes": [
-      "Penicillin is the drug of choice.",
-      "Resistant to vancomycin (important and unusual for Gram-positive rods).",
-      "Alternatives: cephalosporins, fluoroquinolones, clindamycin.",
-      "Endocarditis requires prolonged therapy."
+
+  "when_to_question_identification": [
+    "Catalase positivity argues against E. rhusiopathiae.",
+    "Motility suggests Listeria or other motile short rods.",
+    "Repeated H2S negativity should prompt re-check of media/conditions or alternative genus."
   ],
-  "notes": "Classically associated with fish handlers (‘fish-handler’s disease’) and butchers.",
-  "references": [
-      "Erysipeloid and E. rhusiopathiae infection literature",
-      "Occupational zoonosis reports"
+
+  "recommended_next_tests": [
+    {
+      "test": "H2S detection on TSI or iron-containing media",
+      "reason": "Key supportive marker; verify with appropriate incubation conditions.",
+      "api_kit": "API Coryne"
+    },
+    {
+      "test": "Motility testing",
+      "reason": "Non-motility helps exclude Listeria.",
+      "api_kit": "Manual wet mount"
+    },
+    {
+      "test": "MALDI-TOF MS",
+      "reason": "Best practical confirmation to species level in routine labs.",
+      "api_kit": "Not applicable"
+    }
   ]
-}
+}