A dengue outbreak is an area where two or more dengue cases occur within a 200-meter radius of the index case within 14 days of the index case notification date.
Date of dengue outbreak started: On the notification date of the second case.
The dengue hotspot is localized epidemic lasting more than 30 days the date of epidemic started. Dengue Hotspot with satellite image
Walbachia is a naturally occurring bacterium found 60%-70% in insect species