system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Which disease doesn't require chemoprophylaxis?
assistant
The correct answer is  Measles prevention is only by immunisation and vaccination. No chemoprophylaxis(Ref.PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE 21st Edition page no.136)