UGA receives $3.4 million Gates Foundation grant to fight infectious disease
July 2, 2013Print
- James Hataway
- Dan Colley
Athens, Ga. - The University of Georgia Research Foundation received a $3.4 million grant from the Bill and Melinda Gates Foundation to expand its operational research on how best to eliminate schistosomiasis, a debilitating and neglected tropical disease affecting millions of people in countries throughout much of Africa, Asia, the Middle East and the Americas.
This recent award adds to an $18.7 million grant awarded to UGA by the Gates Foundation in 2008, bringing the funding total to more than $22 million. Researchers will use this additional money to find out how to move from repeatedly treating infected people to eliminating the disease.
"We've reduced infection to very low levels in many areas, and we have good evidence that repeated treatments will prevent severe illness," said Dan Colley, director of the Center for Tropical and Emerging Global Diseases and principal investigator for the project. "Now, the hope is that we can move toward elimination of the disease in areas where control techniques have been most successful."
Schistosomiasis is a parasitic disease caused by several species of worms belonging to the genus Schistosoma. The parasite's life cycle begins when human waste containing eggs from the worms living in a patient's blood vessels enters water, whereupon the eggs hatch. Free-swimming hatchlings then seek out and infect freshwater snails. The hatchlings mature and replicate inside the snail, eventually releasing tens of thousands of larval parasites that burrow into the skin of humans who wade, swim, bathe or wash in the water. Once inside people they develop into adult worms.
While it has a relatively low mortality rate, schistosomiasis can damage internal organs and impair physical and cognitive development in children. The condition can be successfully treated with the drug praziquantel, but patients are frequently re-infected when they return to the water where they work or play.
To eliminate schistosomiasis, researchers have to continue treating patients with praziquantel while steadily reducing their risk for re-infection by improving sanitation and hygiene practices and eliminating the snails that are required to maintain the parasite's life cycle, Colley said.
"This is going to take combining a number of interventions," said Colley, who is a microbiologist in UGA's Franklin College of Arts and Sciences. "We're going to have to knock it down at several points along the line, and keep doing that long enough for the disease to disappear in a given area."
UGA researchers and partners from other institutions working as part of the Schistosomiasis Consortium for Operational Research and Evaluation are already looking for countries or districts in Africa to partner with on this new project. They hope the lessons learned will help create a program for schistosomiasis elimination that can be adapted by other areas throughout Africa and in other parts of the world.
For more information about the efforts to control and eliminate schistosomiasis, see score.uga.edu.
UGA Center for Tropical and Emerging Global Diseases
The University of Georgia Center for Tropical and Emerging Global Diseases draws on a strong foundation of parasitology, immunology, cellular and molecular biology, biochemistry and genetics to develop medical and public health interventions for at-risk populations. Established in 1998, the center is comprised of 20 faculty and their laboratories and promotes international biomedical research and educational programs at UGA and throughout Georgia to address the parasitic and other tropical diseases that continue to threaten the health of people throughout the world. For more information about the center, see www.ctegd.uga.edu.