This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
All are true about dengue fever, except: 
Select and explain. 
A. Most common arboviral disease, B. Its both endemic and epidemic, C. Unaffected by ambient temperature, D. Self limiting
C: Unaffected by ambient temperature
Answer: C: Unaffected by ambient temperature 
Explanation: Dengue can occur in epidemic and also as endemic. Mosquitoes kept at 260 C fail to transmit the DEN-2 virus so low incidence in ceain seasons explained. Ref: Park, 20th Edition, Pages 220-21