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: Social & Preventive Medicine
Which is not a complication of chicken pox ? 
Select and explain. 
A. Pancreatitis, B. Pneumonia, C. Encephalitis, D. Thrombocytopenia
A: Pancreatitis
Answer: A: Pancreatitis 
Explanation: Ans. is 'a' i.e., Pancreatitis Complications o The most common infectious complication of varicella is 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. Varicella pneumonia is the most serious complication following chickenpox in adults.