4 results on '"Koroma, Joseph"'
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2. Managing the Fight against Onchocerciasis in Africa: APOC Experience.
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Fobi, Grace, Yameogo, Laurent, Noma, Mounkaila, Aholou, Yaovi, Koroma, Joseph B., Zouré, Honorat M., Ukety, Tony, Lusamba-Dikassa, Paul-Samson, Mwikisa, Chris, Boakye, Daniel A., and Roungou, Jean-Baptist
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ONCHOCERCIASIS ,ENDEMIC diseases ,WATERSHEDS ,SELF-efficacy ,DRUG administration - Abstract
This article discusses the management of onchocerciasis, or river blindness, in Africa. The Onchocerciasis Control Programme in the Volta River Basin (OCP) was established in 1975 to combat the disease in seven West African countries. It later expanded to include four additional countries and changed its name to the Onchocerciasis Control Programme in West Africa (OCP). In 1995, the African Programme for Onchocerciasis Control (APOC) was launched to control the disease in all endemic countries in sub-Saharan Africa. APOC used community-directed treatment with ivermectin (CDTi) as its core strategy, leading to a significant decrease in infections and preventing millions of disability-adjusted life years (DALYs). The program also expanded its efforts to include other neglected tropical diseases (NTDs) susceptible to mass drug administration. APOC operates through a partnership between affected communities, governments, NGOs, and other stakeholders, with the World Health Organization (WHO) as the executing agency. APOC's success is attributed to its participative governance and engagement of communities through the CDTi strategy, empowering them to take responsibility for delivering treatment and expanding access to other health interventions. The document emphasizes the importance of community engagement, collaboration, and strengthening health systems at the community level in the planning, implementation, and monitoring of interventions for onchocerciasis control and other NTDs. The success [Extracted from the article]
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- 2015
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3. Combined Spatial Prediction of Schistosomiasis and Soil-Transmitted Helminthiasis in Sierra Leone: A Tool for Integrated Disease Control.
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Hodges, Mary H., Soares Magalhães, Ricardo J., Paye, Jusufu, Koroma, Joseph B., Sonnie, Mustapha, Clements, Archie, and Zhang, Yaobi
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SCHISTOSOMIASIS ,HOOKWORM disease ,HELMINTHIASIS ,SCHISTOSOMA haematobium ,PREVENTIVE medicine ,ENDEMIC diseases - Abstract
Background: A national mapping of Schistosoma haematobium was conducted in Sierra Leone before the mass drug administration (MDA) with praziquantel. Together with the separate mapping of S. mansoni and soil-transmitted helminths, the national control programme was able to plan the MDA strategies according to the World Health Organization guidelines for preventive chemotherapy for these diseases. Methodology/Principal Findings: A total of 52 sites/schools were selected according to prior knowledge of S. haematobium endemicity taking into account a good spatial coverage within each district, and a total of 2293 children aged 9–14 years were examined. Spatial analysis showed that S. haematobium is heterogeneously distributed in the country with significant spatial clustering in the central and eastern regions of the country, most prevalent in Bo (24.6% and 8.79 eggs/10 ml), Koinadugu (20.4% and 3.53 eggs/10 ml) and Kono (25.3% and 7.91 eggs/10 ml) districts. By combining this map with the previously reported maps on intestinal schistosomiasis using a simple probabilistic model, the combined schistosomiasis prevalence map highlights the presence of high-risk communities in an extensive area in the northeastern half of the country. By further combining the hookworm prevalence map, the at-risk population of school-age children requiring integrated schistosomiasis/soil-transmitted helminth treatment regimens according to the coendemicity was estimated. Conclusions/Significance: The first comprehensive national mapping of urogenital schistosomiasis in Sierra Leone was conducted. Using a new method for calculating the combined prevalence of schistosomiasis using estimates from two separate surveys, we provided a robust coendemicity mapping for overall urogenital and intestinal schistosomiasis. We also produced a coendemicity map of schistosomiasis and hookworm. These coendemicity maps can be used to guide the decision making for MDA strategies in combination with the local knowledge and programme needs. Author Summary: Two forms of schistosomiasis or bilharzia (intestinal and urogenital) exist in Sierra Leone. The main control strategy for this disease currently is through mass drug administration (MDA) according to the World Health Organization recommended anthelminthic chemotherapy guidelines, and others include snail control, behavior change, and safe water, sanitation and hygiene. Survey on distribution and prevalence of the disease is vital to the planning of MDA in each district. The distribution of intestinal schistosomiasis in the country has been reported previously. The current national survey showed that urogenital schistosomiasis has a specific focal distribution particularly in the central and eastern regions of the country, most prevalent in Bo (24.6%), Koinadugu (20.4%) and Kono (25.3%) districts. Using a simple probabilistic model, this map was combined with the previously reported maps on intestinal schistosomiasis and the combined schistosomiasis prevalence was estimated. The combined schistosomiasis map highlights the presence of high-risk communities in an extensive area in the northeastern half of the country, which provides a tool for planning the national MDA activities. [ABSTRACT FROM AUTHOR]
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- 2012
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4. Geographical Distribution of Intestinal Schistosomiasis and Soil-Transmitted Helminthiasis and Preventive Chemotherapy Strategies in Sierra Leone.
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Koroma, Joseph B., Peterson, Jen, Gbakima, Aiah A., Nylander, Francis E., Sahr, Foday, Soares Magalhães, Ricardo J., Zhang, Yaobi, and Hodges, Mary H.
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MEDICAL geography , *ASCARIS lumbricoides , *SCHISTOSOMIASIS , *HELMINTHIASIS , *FECES examination , *LOGISTIC regression analysis , *GEOLOGICAL statistics , *SPATIAL analysis (Statistics) , *POPULATION density , *TROPICAL medicine - Abstract
Background: A national baseline mapping of schistosomiasis and soil-transmitted helminthiasis (STH) was performed in Sierra Leone. The aim was to provide necessary tools for the Ministry of Health and Sanitation to plan the intervention strategies in the national integrated control program on neglected tropical diseases according to the World Health Organization (WHO) guidelines for preventative chemotherapy (PCT) and for future monitoring and evaluation. Methodology/Principal Findings: 53 primary schools were randomly selected through a two-staged random sampling throughout the country. Approximately one hundred children aged 5-16 years of age were systematically selected from each school and their stool samples examined in a field laboratory. A total of 5,651 samples were examined. Data were analyzed with multivariable logistic regression models using model-based geostatistics. Spatial analysis predicted that S. mansoni infection was positively associated with population density and elevation and that there was a large cluster of high risk of S. mansoni infection (prevalence .70%) in the north and most of the eastern areas of the country, in line with the observed prevalence in Kono (63.8-78.3%), Koinadugu (21.6-82.1%), Kailahun (43.5-52.6%), Kenema (6.1-68.9%) and Tonkolili (0-57.3%). Hookworm infection was negatively associated with population density and land surface temperature, and was high across Sierra Leone with a large cluster of high infection risk (prevalence .70%) in the north-eastern part of the country. Remarkably low prevalence of Ascaris lumbricoides (7.2%) and Trichuris trichiura (3.3%) was recorded when compared with results published in the 1990s. Conclusions/Significance: Results justify PCT for schistosomiasis for school age children and at-risk adults every year in high-risk communities in five districts and every two years in moderate-risk communities in one more district. The high prevalence of STH, particularly hookworm, coupled with widespread anemia according to a national report in Sierra Leone, suggests all but one district justifying biannual PCT for STH for pre-school children, school age children, and at-risk adults. PCT for STH in the remaining district, Kono is justified annually. [ABSTRACT FROM AUTHOR]
- Published
- 2010
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