This envelope is part of an anti-Aedes kit issued by the National Environment Agency to residents during a breakout of dengue fever in 2005. The kit consists of a cover letter from the Head of the Environmental Health Department, S. Satish Appoo; an account from a dengue patient; a quiz-contest about preventing dengue, a checklist; notepad with information about the Aedes mosquito; a list of service providers and a “Mozzie-Free Home” sticker.