This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
[{'content': 'Which of the following is wrong about isolation? \nSelect and explain. \nA. Measle-isolation 3 days after app orf rash, B. Chicken pox - 6 days after app of rash, C. Herper zoster - 6 days after app of rash, D. Rubella - 7 days after app of rash', 'role': 'user'}, {'content': 'Answer: D \nExplanation: <p> There is no isolation in German measles ,except that women in 1st trimester or sexually active, Non immune women in child bearing years not using contraceptive measures should not be exposed. Reference:Park&;s textbook of preventive and social medicine,K.Park,23rd edition,page no:120 <\\p>', 'role': 'assistant'}]