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
The antibiotic of choice of peussis is - 
Select and explain. 
A. Ampicillin, B. Gentamicin, C. Erythromycin, D. Penicillin
C: Erythromycin
Answer: C: Erythromycin 
Explanation: Ans. is 'c' i.e., Erythromycin Treatment of peussis DOC ----> Macrolides (Erythromycin, Azithromycin, Clarithromycin) Alternative ----> Cotrimoxazole