This document provides a literature review on dengue fever. It begins with an overview of the results from a search of the Scopus database for articles on "dengue fever", including statistics on annual publications and top authors, affiliations, and countries. It then summarizes a few key recent papers on mathematical modeling of dengue infection and the role of multiple serotypes. These include a 2017 paper estimating potential infection in Tokyo for the 2020 Olympics and papers examining the interactions between antibody response and multiple serotypes. The review concludes by noting continued high levels of research interest in dengue.