This document discusses dengue and dengue hemorrhagic fever (DHF), including what they are, their symptoms, treatment, and prevention. Dengue is caused by a virus and spread through mosquito bites. DHF is a more severe form of dengue that can be fatal without treatment. While there is no vaccine or cure, reducing standing water where mosquitoes breed and using repellent and bed nets can help prevent the spread of the virus. Coordinated community efforts are needed to control mosquitoes and increase awareness about dengue prevention and care.