Introduction: The World Health Organization estimates that up to 70% of sickle cell deaths in sub-Saharan Africa are preventable by implementing measures that include early diagnosis, information, education and prophylaxis of infections. In the city of Kisangani, in the Tshopo province of the Democratic Republic of the Congo, identifying difficulties in access to care will help guide interventions to fight sickle cell anemia. The aim of this study was to identify the barriers preventing sickle cell patients from accessing care in the Democratic Republic of Congo. Methods: This cross-sectional study involved 158 sickle cell patients who consulted at least once in one of the general hospitals in Kisangani in 2010. The interview guide included questions about social representations and knowledge about the disease, perceptions and knowledge of the provision of health services and financial accessibility to health facilities. Results: For 44.9% of the study participants attribute sickle cell disease to demonic origin or divine curse. The cost of care associated with sickle cell anemia is unaffordable for 93.6% of participants. The 77.8% and 44.9% indicated that it is in the church and in traditional healer's places respectively that the care is more prompt than in formal health system. However, only 22.8% patients in health facilities felt that they waited a long time before commencing treatment. Conclusion:Sickle cell control in Kisangani should focus on raising awareness, information and education of population, sickle cell disease patients and their families. In addition, centers for the comprehensive management of sickle cell disease supported by the state should be developed. Similarly, research on medicinal plants used by traditional healers is necessary.

Background The control of Ebola virus disease (EVD) outbreaks relies on rapid diagnosis and prompt action, a daunting task in limited-resource contexts. This study develops prediction scores that can help healthcare workers improve their decision-making at the triage-point of EVD suspect-cases during EVD outbreaks. Methods We computed accuracy measurements of EVD predictors to assess their diagnosing ability compared with the reference standard GeneXpert® results, during the eastern DRC EVD outbreak. We developed predictive scores using the Spiegelhalter-Knill-Jones approach and constructed a clinical prediction score (CPS) and an extended clinical prediction score (ECPS). We plotted the receiver operating characteristic curves (ROCs), estimated the area under the ROC (AUROC) to assess the performance of scores, and computed net benefits (NB) to assess the clinical utility (decision-making ability) of the scores at a given cut-off. We performed decision curve analysis (DCA) to compare, at a range of threshold probabilities, prediction scores’ decision-making ability and to quantify the number of unnecessary isolation. Results The analysis was done on data from 10432 subjects, including 651 EVD cases. The EVD prevalence was 6.2% in the whole dataset, 14.8% in the subgroup of suspects who fitted the WHO Ebola case definition, and 3.2% for the set of suspects who did not fit this case definition. The WHO clinical definition yielded 61.6% sensitivity and 76.4% specificity. Fatigue, difficulty in swallowing, red eyes, gingival bleeding, hematemesis, confusion, hemoptysis, and a history of contact with an EVD case were predictors of EVD. The AUROC for ECPS was 0.88 (95%CI: 0.86–0.89), significantly greater than this for CPS, 0.71 (95%CI: 0.69–0.73) (p < 0.0001). At -1 point of score, the CPS yielded a sensitivity of 85.4% and specificity of 42.3%, and the ECPS yielded sensitivity of 78.8% and specificity of 81.4%. The diagnostic performance of the scores varied in the three disease contexts (the whole, fitting or not fitting the WHO case definition data sets). At 10% of threshold probability, e.g. in disease-adverse context, ECPS gave an NB of 0.033 and a net reduction of unnecessary isolation of 67.1%. Using ECPS as a joint approach to isolate EVD suspects reduces the number of unnecessary isolations by 65.7%. Conclusion The scores developed in our study showed a good performance as EVD case predictors since their use improved the net benefit, i.e., their clinical utility. These rapid and low-cost tools can help in decision-making to isolate EVD-suspicious cases at the triage point during an outbreak. However, these tools still require external validation and cost-effectiveness evaluation before being used on a large scale.

Background: The Plant of Jatropha curcas is known for their many biological activities including antiviral, antifungal and antibacterial. Aim: To provide update knowledge on the phytochemistry, toxicology and antiviral activity of some medically interesting Jatropha curcas. Study Design: Multidisciplinary advanced bibliographic surveys and dissemination of the resulted knowledge. Results: The literature review shows that Jatropha curcas have antiviral properties on different types of viruses. Different parts of the plant such as leaves, roots, latex, seeds, fruits and other parts have been reported to have different compounds which have interesting bioactivities and antiviral properties. Conclusion: The present mini-review can therefore help inform future scientific research towards the development of anti-Hepatitis B virus and antiCovid-19 herbal drugs of relevance as well as nutraceuticals from J. curcas for the improvement of human health and wellbeing using reverse pharmacology approach. Molecular docking of some naturally occurring isolate compounds against anti-Hepatitis B virus protease is in progress.