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
Vector for Kala-azar -
assistant
The correct answer is  Sandflies of genera Phlebotomus act as intermediate host for Leishmaniasis (Kala-azar).
Human and other vertebrates act as definitive host.