This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S., Subject name: Medicine
Which disease does not cause AV nodal block? 
Select and explain. 
A. chagas, B. cat scratch, C. Lyme disease, D. Toxoplasmosis
B: cat scratch
Answer: B: cat scratch 
Explanation: Ans. b. Cat scratchETIOLOGY OF AV BLOCKInfectious DiseaseEndocarditisLyme diseaseChagas diseaseSyphilisTuberculosisDiphtheriaToxoplasmosisFor more update see the explanation of Ques No-16 in NEET medicine pattern.