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
A 24 year-old cook in a hostel mess suffered from enteric fever 2 years back. The chronic carrier state in this patient can be diagnosed by -
assistant
The correct answer is  Vi agglutinins of titer of > 1:10 is taken significant for diagnosis of Typhoidal carriers