Dengue hemorrhagic fever is a mosquito-borne viral infection. The incidence of dengue hemorrhagic fever has significantly increased worldwide over the past few decades. Indragiri Regency reported 78 cases of dengue fever in 2022, which decreased to 21 cases in 2023, with the highest IR found in the working area of the Sipayung Health Center, specifically in Pasir Kemilu Village. Larvae density …