Furthermore, the earliest SARS-CoV-2 positive case, found in the studied population, dates back to December, 2019 and is represented by a sample by a 60-year-old female patient from Vitória exhibiting symptoms compatible with Dengue fever on December 9th 2019, who had a blood sample taken on December 18th, testing positive for the presence of Dengue-specific IgM (S/CO = 4.31). The gene discussed is CD40LG; the disease is dengue disease.