Introduction: Dengue is an endemic disease in Peru and is considered a public health problem. During and after the “El Niño Costero” phenomenon in 2017, the Department of Ica presented 4384 cases of dengue, the highest number of cases in this region. Methods: A cross-sectional analytical study was conducted and included all the families in the district of Palpa, Ica. The main exposure was the report of a previous dengue infection of any family member and we want to find an association with the level of knowledge, attitudes and practices about dengue. Results: We found that the participants who had been exposed to dengue had a 63% higher probability (PR: 1.63; 95% CI: 1.02 - 2.58) of having a high level of knowledge about dengue in comparison with the participants of families who did not have a history of dengue. For the levels of attitudes (PR: 0.90; IC 95%: 0.60 – 1.35) and pract...