Serological Study of Dengue and Characterization of Immune Response in Ten Endemic and Non-Endemic Cities in Mexico

Background: Dengue continues to be a high priority disease for public health in tropical and subtropical countries, where vector control measures have not had the expected impact on transmission. The development of new vaccines opens the possibility of having an additional measure capable of preventing the development of the disease and avoiding its complications. Currently, in two of the Dengue virus (DENV) vaccines a differential behaviour of the immune response has been observed between seropositive and seronegative individuals, which makes the generation of evidence from prevalence studies in places of high and low endemicity more relevant. Objective: To determine the predominant type of humoral immune response in high areas and to estimate the serotype-specific prevalence for DENV in people groups aged 5 to 35 years living in Mexican cities with low and high dengue endemicity. Methodology: Descriptive cross-sectional study with subgroup analysis (by endemic and non-endemic areas, by age groups and by sex). Expected results: In areas of low dengue endemicity the humoral immune response against dengue is predominantly monotypic (against one serotype) while in areas of high dengue endemicity it is predominantly multitype (against two or more serotypes).