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
Endemic disease is defined as a disease-
assistant
The correct answer is  Ans. is 'a' i.e., Occurance regularly in expected frequency * Sporadic - Disease occuring irregularly from time to time.* Endemic - Disease occuring regularly in expected frequency.* Epidemic - Disease occuring in excess of expected frequency.* Pandemic - Epidemic affecting a large proportion of population over a wide geographic area.