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
MC complication of chickenpox in children – 
Select and explain. 
A. Encephalitis, B. Sec. bacterial infection, C. Pneumonia, D. Otitis media
B: Sec. bacterial infection
Answer: B: Sec. bacterial infection 
Explanation: The most common infectious complication of varicella is a secondary bacterial superinfection of the skin, which is usually caused by Streptococcus pyogenes or Staphylococcus aureus.
The most common extracutaneous site of involvement in children is CNS → Meningitis, Encephalitis, cerebellar, ataxia, Reye's syndrome
Varicella pneumonia is the most serious complication following chickenpox in adults.