This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
Infantile myocarditis and pericarditis is due to 
Select and explain. 
A. Coxsackie A, B. Coxsackie B, C. Mumps, D. Pox virus
B: Coxsackie B
Answer: B: Coxsackie B 
Explanation: Ans. is 'b' i.e., Coxsackie B o The commonest cause of myocarditis is coxsackie B infection, which occurs any where from the age of a few hours to 7 weeks, with a peak around two weeks.