Facteurs Associés Aux Infections Transmissibles Par Le Sang Chez Les Donneurs En Milieu Rural Dans Le Territoire De Beni Du 01/03 Au 31/07/2022

Contexte : Les infections transmissibles par le sang continuent à être un sérieux problème de santé publique en  RDC. Cela  devrait constituer une préoccupation  durant toute la chaine transfusionnelle pour atténuer le risque de contamination.Objectifs : C’est de déterminer les facteurs associés à la survenue des Infections Transmissibles par le Sang chez les donneurs.Matériel et méthode : L’échantillon est constitué de 410 donneurs de sang reçu au sein des établissements sanitaires dans le territoire de Beni. Les facteurs sociaux démographiques, antécédents personnels et médicaux récoltés grâce à une fiche de collecte de données et les résultats des tests recueillis dans les registres de laboratoires. Les facteurs associés aux infections  ont été analysés grâce aux tests statistiques (KHI carré et le calcul des Odds ratio en analyse bi variée avec intervalle de confiance à 95%).Résultats : Les 410 donneurs étaient tous des bénévoles ; les facteurs Age, Sexe, profession, niveau d’instruction et Statut matrimonial étaient significatifs. Les antécédents de rapports sexuel occasionnel étaient des facteurs associés à la transmission des infections  par le sang ; l’âge de 25 à 29ans présente 3 fois le risque de porter l’infection à VIH ; les célibataires présentent 7 fois le risque de porter l’infection à VIH, les hommes présentent 0,9 fois le risque de porter l’infection à VIH, les étudiants présentent  2 fois le risque de porter  l’infection à VIH. Les antécédents de rapport sexuel occasionnels présentent 1 fois le risque de porter l’infection à VIH ; 0,74 fois celui de VHC; 0,247 fois celui de VHB  et 0,1480 fois celui de Syphilis.Conclusion : l’étude relève l’importance d’avoir l’anamnèse bien fouillée chez les donneurs pour prévenir les infections transmissibles, et la nécessité de renforcer la sensibilisation sur les attitudes et comportement à éviter par les donneurs de sang

An audit of malaria mortality using the “Malaria Death Investigation Form” at United Bulawayo Hospitals, Zimbabwe: 1996-2000

A research paper on malaria mortality in Zimbabwe.More than 90% of worldwide malaria morbidity and mortality occurs in sub-Saharan Africa where about one million direct deaths are recorded annually. The fight against the pandemic is based on a long- term use of highly efficacious treatment and transmission control. However, incomplete and imprecise case detection and diagnosis impede an accurate quantification of the disease burden. In Zimbabwe, malaria is a serious public health problem with uneven geographical distribution and impact on local institutions and communities. For instance, no malaria, transmission has been reported in the two cities of Harare and Bulawayo that host the country's four tertiary level hospitals. However, conversely, the rate of parasite resistance to available drugs in some rural areas (Chirundu, Hwange etc .. ) has put the country in the "action period" according to the WHO/AFRO classification

Hydrological uncertainty analysis and scenario-based streamflow modelling for the Congo River Basin

The effects of climate and environmental change are likely to exacerbate water stress in Africa over the next five decades. It appears obvious, therefore, that large river basins with considerable total renewable water resources will play a prominent role in regional cooperation to alleviate the pressure of water scarcity within Africa. However, managing water resources in the large river basins of Africa involves problems of data paucity, lack of technical resources and the sheer scale of the problem. These river basins are located in regions that are characterized by poverty, low levels of economic development and little food security. The rivers provide multiple goods and services that include hydro-power, water supply, fisheries, agriculture, transportation, and maintenance of aquatic ecosystems. Sustainable water resources management is a critical issue, but there is almost always insufficient data available to formulate adequate management strategies. These basins therefore represent some of the best test cases for the practical application of the science associated with the Predictions in Ungauged Basins (PUB). The thesis presents the results of a process-based hydrological modelling study in the Congo Basin. One of the primary objectives of this study was to establish a hydrological model for the whole Congo Basin, using available historical data. The secondary objective of the study was to use the model and assess the impacts of future environmental change on water resources of the Congo Basin. Given the lack of adequate data on the basin physical characteristics, the preliminary work consisted of assessing available global datasets and building a database of the basin physical characteristics. The database was used for both assessing relationships of similarities between features of physiographic settings in the basin (Chapters 3 and 4), and establishing models that adequately represent the basin hydrology (Chapters 5, 6, and 7). The representative model of the Congo Basin hydrology was then used to assess the impacts of future environmental changes on water resources availability of the Congo Basin (Chapter 8). Through assessment of the physical characteristics of the basin, relationships of similarities were used to determine homogenous regions with regard to rainfall variability, physiographic settings, and hydrological responses. The first observation that comes from this study is that these three categories of regional groups of homogenous characteristics are sensible with regards to their geographical settings, but the overlap and apparent relationships between them are weak. An explanation of this observation is that there are insufficient data, particularly associated with defining sub-surface processes, and it is possible that additional data would have assisted in the discrimination of more homogenous groups and better links between the different datasets. The model application in this study consisted of two phases: model calibration, using a manual approach, and the application of a physically-based a priori parameter estimation approach. While the first approach was designed to assess the general applicability of the model and identify major errors with regard to input data and model structure, the second approach aimed to establish an understanding of the processes and identify useful relationships between the model parameters and the variations in real hydrological processes. The second approach was also designed to quantify the sensitivity of the model outputs to the parameters of the model and to encompass information sharing between the basin physical characteristics and quantifying the parameters of the model. Collectively, the study’s findings show that these two approaches work well and are appropriate to represent the real hydrological processes of Congo Basin. The secondary objective of this study was achieved by forcing the hydrological model developed for the Congo Basin with downscaled Global Climate Model (GCMs) data in order to assess scenarios of change and future possible impacts on water resources availability within the basin. The results provide useful lessons in terms of basin-wide adaptation measures to future climates. The lessons suggest that there is a risk of developing inappropriate adaptation measures to future climate change based on large scale hydrological response, as the response at small scales shows a completely different picture from that which is based on large scale predictions. While the study has concluded that the application of the hydrological model has been successful and can be used with some degree of confidence for enhanced decision making, there remain a number of uncertainties and opportunities to improve the methods used for water resources assessment within the basin. The focus of future activities from the perspective of practical application should be on improved access to data collection to increase confidence in model predictions, on dissemination of the knowledge generated by this study, and on training in the use of the developed water resources assessment techniques

Strengthening field epidemiology in Africa: The Zimbabwe Field Epidemiology Training Program

The Zimbabwe Masters in Public Health Program is a 2-year competency based training that consists of classroom teaching (30%) and on the job field training (70%). The MPH program was created in 1993 with the aim of assisting the Ministry of Health and Child Welfare create a permanent capacity to recruit, train, and employ public health practitioners to sustain the public health infrastructure. The MPH program is operated from two sites: the DCM at the College of Health Sciences, of University of Zimbabwe (UZ) and the Health Studies Office (HSO) in MOHCW. The HSO in the MOHCW oversees the operation of field training in collaboration with approved Field Supervisors at the training sites. MOHCW provides field training sites through its eight provincial medical directorates. In addition the health directorates of the major cities in the country are designated field training sites. Since 1993, the program has had 18 Cohorts trained of which three are part-time. The part-time program was initiated in 2008 with an intake of 10 trainees. Since 2003, the full time program has experienced an increase in intake with the highest intake recorded being 16 trainees in 2003. The average intake from 2003 - 2011 has been 12 trainees. A total of 169 trainees have been enrolled in the last 19 years. Of the 143 trainees enrolled by 2009, 136 (95%) have graduated. The part-time program has had one cohort graduating with 5 out 10 successfully completing the course. Since the launch of the program, the majority of the graduates have filled most of the key public health positions and even so the positions in most of the nongovernmental organisations