AUTHOR=Londono-Renteria Berlin L. , Shakeri Heman , Rozo-Lopez Paula , Conway Michael J. , Duggan Natasha , Jaberi-Douraki Majid , Colpitts Tonya M. TITLE=Serosurvey of Human Antibodies Recognizing Aedes aegypti D7 Salivary Proteins in Colombia JOURNAL=Frontiers in Public Health VOLUME=6 YEAR=2018 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2018.00111 DOI=10.3389/fpubh.2018.00111 ISSN=2296-2565 ABSTRACT=Background

Dengue is one of the most geographically significant mosquito-borne viral diseases transmitted by Aedes mosquitoes. During blood feeding, mosquitoes deposit salivary proteins that induce antibody responses. These can be related to the intensity of exposure to bites. Some mosquito salivary proteins, such as D7 proteins, are known as potent allergens. The antibody response to D7 proteins can be used as a marker to evaluate the risk of exposure and disease transmission and provide critical information for understanding the dynamics of vector–host interactions.

Methods

The study was conducted at the Los Patios Hospital, Cucuta, Norte de Santander, Colombia. A total of 63 participants were enrolled in the study. Participants were categorized into three disease status groups, age groups, and socioeconomic strata. The level of IgG antibodies against D7 Aedes proteins was determined by ELISA. We used a statistical approach to determine if there is an association between antibody levels and factors such as age, living conditions, and dengue virus (DENV) infection.

Results

We found that IgG antibodies against D7 proteins were higher in non-DENV infected individuals in comparison to DENV-infected participants. Also, the age factor showed a significant positive correlation with IgG antibodies against D7 proteins, and the living conditions (socioeconomic stratification), in people aged 20 years or older, are a statistically significant factor in the variability of IgG antibodies against D7 proteins.

Conclusion

This pilot study represents the first approximation to elucidate any correlation between the antibody response against mosquito D7 salivary proteins and its correlation with age, living conditions, and DENV infection in a dengue endemic area.