The Mission Mosquito Information Sharing Program (ISP), a collaboration between the U.S. Department of State and Battelle Memorial Institute, is a public diplomacy effort to build and expand an international network of health communicators to increase engagement on mosquito-borne disease. Nineteen professionals from countries experiencing mosquito-borne diseases engaged in a two-week multi-directional information exchange across the United States in May 2018. Program alumni applied knowledge and tools from the ISP in follow-on projects and public outreach campaigns in their home countries. This paper summarizes the ISP and lessons learned, and highlights a science communication case study examining skills and understanding gained.