Cases of dengue have more than doubled since 2023, especially in endemic areas like Latin America, the Caribbean, South and Southeast Asia, and the coastal areas of Africa. This increasingly prevalence underscores the importance of knowing how to protect patients traveling abroad to those areas, which is why Dr. Charles Turck speaks with Dr. David Hamer about essential prevention strategies for dengue fever. Dr. Hamer is a Professor of Global Health and Medicine at the Boston University School of Public Health.