In this paper, we apply optimal control theory to the model for shigellosis. It is assumed that education campaign, sanitation, and treatment are the main controls for this disease. The aim is to minimize the number of infections resulting from contact with careers, infectious population, and contaminated environments while keeping the cost of associated controls minimum. We achieve this aim through the application of Pontryagin's Maximum Principle. Numerical simulations are carried out by using both forward and backward in time fourth-order Runge-Kutta schemes. We simulate the model under different strategies to investigate which option could yield the best results. The findings show that the strategy combining all three control efforts (treatment, sanitation, and education campaign) proves to be more beneficial in containing shigellosis than the rest. On the other hand, cost-effectiveness analysis is performed via incremental cost-effectiveness ratio (ICER). The findings from the ICER show that a strategy incorporating all three controls (treatment, sanitation, and education campaign) is the most cost-effective of all strategies considered in the study.
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http://dx.doi.org/10.1155/2020/9732687 | DOI Listing |
PLoS One
January 2025
Faculty of Computer Science and Information Technology, Universiti Malaya, Kuala Lumpur, Malaysia.
Background: Online malicious attempts such as scamming continue to proliferate across the globe, aided by the ubiquitous nature of technology that makes it increasingly easy to dupe individuals. This study aimed to identify the predictors for online fraud victimization focusing on Personal, Environment and Behavior (PEB).
Methods: Social Cognitive Theory (SCT) was used as a guide in developing the PEB framework.
Gerontologist
January 2025
Population Health Initiative, University of Washington, Seattle, WA, USA.
Background And Objectives: The study aimed to identify key drivers of vaccine hesitancy among healthcare workers (HCWs) employed at Long-term care facilities (LTCF) within selected states. It also sought to determine which interventions, policies, and programs effectively reduced HCW vaccine hesitancy for COVID-19 and influenza.
Research Design And Methods: The study employed a mixed methods approach, combining secondary analysis of the Behavioral Risk Factor Surveillance System (BRFSS) data, survey research, and focus groups.
Malawi Med J
January 2025
Department of Health Systems and Policy, School of Global and Public Health, Kamuzu University of Health Sciences, Blantyre, Malawi.
Background: Each year, nearly 400,000 new cases of paediatric hydrocephalus are estimated to occur worldwide, and almost half of these cases are expected to affect children in Africa. At Queen Elizabeth Central Hospital (QECH), an urban tertiary hospital in Blantyre, Malawi, located in south-east Africa, around 200 children received neurosurgical treatment for hydrocephalus in 2023. These children require lifelong follow-up and care, which places significant demands on their caregivers.
View Article and Find Full Text PDFNiger Med J
January 2025
Department of Medical Laboratory Services, Federal Medical Center, Yenagoa, Bayelsa State, Nigeria.
Cholera remains a significant public health challenge in Nigeria, with recurrent outbreaks exacerbated by inadequate water, sanitation, and hygiene (WASH) infrastructure, as well as conflict and displacement. This review examines cholera outbreaks in Nigeria from 2010 to 2024, analyzing epidemiological trends, contributing factors, and public health responses. Seasonal peaks during periods of heavy rainfall and flooding have consistently facilitated transmission, with Northern regions disproportionately affected due to poor infrastructure and ongoing conflicts.
View Article and Find Full Text PDFNiger Med J
January 2025
Department of Community Medicine, Ahmadu Bello University Zaria, Nigeria.
Background: High maternal mortality has remained a problem, especially in developing countries. Ensuring availability and utilization of Basic Emergency Obstetric and Newborn Care services (BEmONC) reduce maternal morbidity and mortality. The study aimed to determine the geospatial distribution, accessibility and utilization of BEmONC services in Jigawa State.
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