Among those with recent infection detected through a serological test (IgM), the seroepidemiological profile of the study participants was composed of females (26.7%), aged between 18 and 39 years (28.2%), with not more than eight years of schooling (29.1%), non-white race/color (26.3%), who did not live with an affective companion (28.3%), as shown in Table 1. This evidence concerns the gene CD40LG and infection.