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
Carriers are important source of infection in all, EXCEPT:
assistant
The correct answer is  Ans. is 'a' i.e. Measles Sources of infection :Measles : The only source of infection is a case of measles.Mumps : Both clinical and sub clinical casesDiptheria : 95% carriers and 5% clinical casesTyphoid : case & carriers