Update rag/rag_retriever.py

rag/rag_retriever.py

@@ -302,7 +302,7 @@ def shape_genus_context(
         recommendation = "Recommend MALDI-TOF or PCR for confirmation."
 
     # Weak evidence edge case
-    elif M <= 1 and C == 0:
+    elif M <= 2 and C == 0:
         confidence_state = "Weak / limited evidence"
         recommendation = "Additional phenotype data recommended."