The concurrence of COVID-19 with dengue present a similarity in the early stages of both diseases could cause delays in the diagnosis of dengue infection,SARS-CoV-2 or both. This adds an additional difficulty to the diagnosis and suggests that a positive result of IgM or IgG serology would not be sufficient for the definitive confirmation of dengue. Clinical case: 13-year-old female patient in poor general condition who debuts with a clinical picture of 5 days of evolution consisting of fever, anosmia, ageusia, unquantified fever peaks, chills, abdominal pain and vomiting that does not stop.