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': 'Theres is an outbreak of MRSA infection in a ward. What is the best way to control the infection - \nSelect and explain. \nA. Vancomycin given empirically to all patients, B. Fumigation of ward frequently, C. Washing hand before and after attending patients, D. Wearing masks before any invasive procedure in ICU', 'role': 'user'}, {'content': 'Answer: C \nExplanation: <p> Washing of hands before and after attending the patients as MOST COMMON ROUTE OF INFECTION is hands. Reference:Park&;s textbook of preventive and social medicine,K.Park,23rd edition,page no:359. <\\p>', 'role': 'assistant'}]