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Tag: Dan Colley

CTEGD names travel fund for Daniel G. Colley

Donna Huber on May 18, 2020

Dr. Dan Colley with students (photo credit: Andrew Tucker) One day Daniel Colley raised his hand to volunteer, setting in motion five decades of scientific adventures. It was 1969, and Colley’s postdoctoral adviser, ByronWaksman, a renowned immunologist at Yale University School of Medicine, had stepped into the laboratory and asked if anyone wanted to go …

Nationwide Remapping of Schistosoma mansoni Infection in Rwanda Using Circulating Cathodic Antigen Rapid Test: Taking Steps Toward Elimination

Donna Huber on May 18, 2020

Eugene Ruberanziza, Udo Wittmann, Aimable Mbituyumuremyi, Alphonse Mutabazi, Carl H. Campbell Jr, Daniel G. Colley, Fiona M. Fleming, Giuseppina Ortu, Govert J. van Dam, Irenee Umulisa, Jamie Tallant, Michee Kabera, Muhammed Semakula, Paul L. A. M. Corstjens, Tharcisse Munyaneza, Warren Lancaster, Jean Bosco Mbonigaba and Michelle N. Clements. Am J Trop Med Hyg. 2020 May 18. doi: 10.4269/ajtmh.19-0866.

Supplemental Articles: Operational Research on Controlling and Eliminating Schistosomiasis (SCORE)

Donna Huber on May 12, 2020

These articles are available online ahead of print and summarize much of the work of the Schistosomiasis Consortium for Operational Research and Evaluation (SCORE). The articles will be published as a supplement to the July issue of The American Journal of Tropical Medicine and Hygiene. Schistosomiasis Consortium for Operational Research and Evaluation: Mission Accomplished The …

Global Schistosomiasis Alliance pays tribute to Dan Colley

Donna Huber on April 28, 2020

Dan Colley in his lab at UGA (photo credit: Andrew Tucker)   Dr. Daniel G. Colley, Director of the Schistosomiasis Consortium for Operational Research and Evaluation (SCORE), will be retiring from his position as Professor at the University of Georgia on June 30, 2020. He will continue as a Professor Emeritus. The Global Schistosomiasis Alliance …

Survey of Schistosomiasis in Saint Lucia: Evidence for Interruption of Transmission

Donna Huber on February 10, 2020

Saint Lucia at one time had levels of schistosomiasis prevalence and morbidity as high as many countries in Africa. However, as a result of control efforts and economic development, including more widespread access to sanitation and safe water, schistosomiasis on the island has practically disappeared. To evaluate the current status of schistosomiasis in Saint Lucia, …

Environmental Predictors of Schistosomiasis Persistent Hotspots following Mass Treatment with Praziquantel

Donna Huber on December 30, 2019

Schistosomiasis control programs rely heavily on mass drug administration (MDA) campaigns with praziquantel for preventative chemotherapy. Areas where the prevalence and/or intensity of schistosomiasis infection remains high even after several rounds of treatment, termed “persistent hotspots” (PHSs), have been identified in trials of MDA effectiveness conducted by the Schistosomiasis Consortium for Operational Research and Evaluation …

Modeling approaches to predicting persistent hotspots in SCORE studies for gaining control of schistosomiasis mansoni in Kenya and Tanzania

Donna Huber on October 17, 2019

BACKGROUND: Some villages, labeled "persistent hotspots (PHS)," fail to respond adequately in regard to prevalence and intensity of infection to mass drug administration (MDA) for schistosomiasis. Early identification of PHS, for example, before initiating or after a year or two of MDA could help guide programmatic decision-making. METHODS: In a study with multiple rounds of …

Five-Year Impact of Different Multi-Year Mass Drug Administration Strategies on Childhood Schistosoma mansoni-Associated Morbidity: A Combined Analysis from the Schistosomiasis Consortium for Operational Research and Evaluation Cohort Studies in the Lake Victoria Regions of Kenya and Tanzania

Donna Huber on August 12, 2019

The WHO recommends mass treatment with praziquantel as the primary approach for Schistosoma mansoni-related morbidity control in endemic populations. The Schistosomiasis Consortium for Operational Research and Evaluation implemented multi-country, cluster-randomized trials to compare effectiveness of community-wide and school-based treatment (SBT) regimens on prevalence and intensity of schistosomiasis. To assess the impact of two different treatment schedules …

Persistent Hot spots in Schistosomiasis Consortium for Operational Research and Evaluation Studies for Gaining and Sustaining Control of Schistosomiasis after Four Years of Mass Drug Administration of Praziquantel

Donna Huber on July 8, 2019

Control of schistosomiasis presently relies largely on preventive chemotherapy with praziquantel through mass drug administration (MDA) programs. The Schistosomiasis Consortium for Operational Research and Evaluation has concluded five studies in four countries (Côte d'Ivoire, Kenya, Mozambique, and Tanzania) to evaluate alternative approaches to MDA. Studies involved four intervention years, with final evaluation in the fifth …

Multiple Praziquantel Treatments of Schistosoma mansoni Egg-Negative, CCA-Positive Schoolchildren in a Very Low Endemic Setting in Egypt Do Not Consistently Alter CCA Results

Donna Huber on April 22, 2019

Forty-four Schistosoma mansoni egg-negative/circulating cathodic antigen (CCA) low-positive (trace or 1+) children in three districts of very low prevalence in Egypt were given three sequential praziquantel (PZQ) treatments. Stool and urine specimens were collected 3 months following the initial treatment, and 3 weeks following the second and following the third PZQ treatments, which were conducted 5 weeks …