CHIEX investigates how climate variability affects human health in the tropical Americas. It runs projects in Brazil, Colombia, Cuba, Jamaica, Mexico and Venezuela, and focuses specifically on the spread of dengue fever and malaria in these countries. These projects have practical implications; for example, a study in Cuba led to the development of a "bioclimatological" monitoring system that uses climatic predictions to prevent and control disease.

The Institute of Tropical Medicine provides training and research into tropical medicine and veterinary health care in developing countries. Its activities include studies on disease control and healthcare systems, education, clinical care, and support for governments and institutions involved in human and animal health. The website provides information about the institute's activities, including research in biomedical sciences, public health and clinical sciences. It also provides access to information about diagnostic supplies, and to resources such as blogs, networks and meetings about global health.