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
[{'content': 'All show iceberg phenomenon except ? \nSelect and explain. \nA. Influenza, B. Polio, C. Hepatitis, D. Chicken pox', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. is \'d\' i.e., Chicken pox In some disease, a great deal of subclinical infection occurs ? i) Rubella iii) Polio v) Japanese encephalitis vii) Influenza ii) Mumps iv) Hepatitis A and B vi) Diphtheria In chickenpox -Inapparent infection is estimated to occur in no more than 5% of susceptible children".', 'role': 'assistant'}]