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Learn how NIAID is working to stop mosquito-borne diseases.
Neglected tropical diseases (NTDs), such as dengue, lymphatic filariasis, trachoma, and leishmaniasis, take a tremendous toll on global health. The World Health Organization estimates that more than one billion people—approximately one-sixth of the world's population—suffer from at least one NTD.
NTDs are called "neglected," because they generally afflict the world's poor and historically have not received as much attention as other diseases. NTDs tend to thrive in developing regions of the world, where water quality, sanitation, and access to health care are substandard. However, some of these diseases also are found in areas of the United States with high rates of poverty.
While NTDs rarely lead to death, they can cause significant disability that persists for a lifetime. They can cause fatigue, blindness, and disfigurement. Sufferers miss school, are unable to work, or are too embarrassed to seek medical care. By diminishing quality of life and opportunities to succeed, NTDs can reinforce the cycle of poverty among the world's disadvantaged populations.
NIAID has a robust program of research devoted to better understanding, preventing, and treating NTDs. Studies conducted and supported by NIAID have led to important new discoveries about the microbes that cause NTDs, the identification of targets for potential new drugs and vaccines, and the development of strategies for controlling the organisms that transmit NTD-causing agents to humans.
Read more about NIAID's Role in NTD Research.
Tropical Medicine Research Centers
NTD Workshop Summary: Identifying Research Gaps and Opportunities (PDF)
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Chikungunya Vaccine Trial Begins Enrollment—Dec. 20, 2011
NIH Remembers Dr. Franklin A. Neva—Oct. 26, 2011
Media Availability: NIH Scientists Identify Most Proteins Made by Parasitic Worm—May 23, 2011
Human Clinical Trial of NIH-developed Dengue Vaccine Begins—Aug. 9, 2010
News from NIAID-Supported Institutions
Last Updated November 30, 2012
Last Reviewed May 23, 2011