Tropical medicine is a branch of medicine that focuses on health issues prevalent in tropical and subtropical regions. It addresses diseases caused by parasites, bacteria, and viruses that thrive in warm climates, such as malaria, dengue fever, and schistosomiasis. This field also studies the impact of environmental factors on health, including climate change and urbanization. Professionals in tropical medicine work to prevent, diagnose, and treat these diseases, often in collaboration with public health organizations. They may also engage in research to develop vaccines and improve healthcare systems in affected areas, ensuring better health outcomes for vulnerable populations.