1.1 Background to the Study

Diarrheal diseases are among the leading causes of morbidity and mortality in children under the age of five, particularly in developing regions of the world. This burden is closely linked to inadequate water, sanitation, and hygiene (WASH) practices, which exacerbate the vulnerability of young children to waterborne diseases. The World Health Organization (WHO) underscores that unsafe drinking water, poor sanitation, and lack of hygiene account for a significant portion of the global diarrheal disease burden, emphasizing the critical role of WASH interventions in mitigating these risks (WHO, 2021). In Ohafia Local Government Area, Abia State, Nigeria, the high prevalence of diarrheal diseases among children under five years remains a public health challenge. This situation is exacerbated by limited access to potable water, substandard sanitation facilities, and poor hygiene practices, especially in rural communities. UNICEF (2022), notes that addressing these environmental determinants is essential to reducing childhood mortality and improving overall health outcomes. The role of WASH interventions in preventing diarrheal diseases cannot be overemphasized. Effective WASH programs focus on improving access to safe drinking water, providing sanitation facilities, and promoting hygiene practices such as handwashing with soap. These interventions have been shown to significantly reduce the incidence of diarrhea in vulnerable populations. Studies reveal that handwashing with soap alone can reduce the incidence of diarrhea by up to 30%, highlighting the transformative potential of WASH interventions (Ahmed et al., 2023).

In Nigeria, the implementation of WASH programs has faced several challenges, including inadequate funding, lack of community engagement, and cultural barriers. Ohafia Local Government Area is no exception, where limited resources and infrastructural deficits hinder the effectiveness of WASH interventions. However, collaborative efforts between government agencies, non-governmental organizations (NGOs), and community stakeholders have demonstrated success in some regions, reducing diarrheal disease prevalence through targeted WASH initiatives (Eze et al., 2023). Understanding the role of WASH in reducing diarrheal diseases among under-five children is crucial for informing policy and programmatic decisions in Ohafia. Such an understanding provides a basis for developing sustainable and culturally appropriate interventions that address the unique challenges of the region. This study explores how WASH initiatives can contribute to reducing the incidence of diarrheal diseases among children under five in Ohafia Local Government Area, providing evidence for scaling up successful interventions to improve child health outcomes. Diarrheal diseases remain a leading public health challenge globally, particularly affecting children under five years of age. This challenge is more pronounced in low- and middle-income countries where inadequate water, sanitation, and hygiene (WASH) facilities significantly contribute to the burden of disease. The World Health Organization (WHO) estimates that diarrheal diseases cause approximately 525,000 deaths annually among children under five, primarily due to preventable environmental factors (WHO, 2021). In many rural and peri-urban communities, including Ohafia Local Government Area in Abia State, Nigeria, the lack of access to clean water and proper sanitation poses significant threats to child health and survival. Children under five are particularly vulnerable to diarrheal diseases due to their developing immune systems and frequent exposure to contaminated environments. In regions like Ohafia, the situation is exacerbated by insufficient infrastructure, poor waste disposal practices, and limited public health education. According to UNICEF (2022), poor access to potable water and inadequate sanitation facilities directly increases the risk of children contracting waterborne diseases such as cholera, typhoid, and diarrhea. Addressing these issues requires a comprehensive approach that integrates community-based WASH interventions to break the cycle of contamination and disease.

Evidence supports the transformative potential of WASH interventions in reducing the prevalence of diarrheal diseases. Improved access to clean water reduces the likelihood of consuming contaminated water, while proper sanitation facilities minimize open defecation and environmental contamination. Additionally, hygiene promotion campaigns, particularly those targeting handwashing with soap, have demonstrated significant reductions in diarrheal incidence. According to Ahmed et al. (2023), combined WASH interventions have reduced diarrheal episodes by up to 50% in similar contexts, underscoring their efficacy. In the Nigerian context, the federal government and international organizations have implemented several WASH programs to combat diarrheal diseases. However, the effectiveness of these initiatives has been inconsistent due to systemic challenges such as inadequate funding, weak policy enforcement, and cultural resistance to behavioral changes (Eze et al., 2023). In Ohafia, these challenges are further compounded by the rural nature of the area, which limits access to modern facilities and resources. Community engagement and culturally sensitive approaches are thus critical for the successful implementation of WASH programs in this region.

Furthermore, the economic implications of diarrheal diseases cannot be overlooked. Families in Ohafia bear the financial burden of treating recurring illnesses, often spending significant portions of their income on medical expenses. The loss of productivity due to caregiver responsibilities and the long-term developmental impacts on affected children further underscore the need for proactive WASH interventions. The United Nations Sustainable Development Goal (SDG) 6, which focuses on clean water and sanitation, provides a global framework to guide these efforts. Achieving SDG 6 in Ohafia would significantly improve child health and contribute to broader development goals in the region (United Nations, 2022).

This study seeks to explore the role of WASH interventions in reducing the prevalence of diarrheal diseases among children under five in Ohafia Local Government Area. By examining existing programs, identifying gaps, and highlighting success stories, the study aims to provide actionable insights for policymakers, public health practitioners, and community stakeholders. Addressing these issues holistically can pave the way for sustainable health improvements, reduced child mortality, and enhanced quality of life for families in the region.

1.2 Statement of Problem

Diarrheal diseases remain a major public health concern and a leading cause of morbidity and mortality among children under five, especially in resource-limited settings like Ohafia Local Government Area, Abia State, Nigeria. Despite global and national efforts to reduce the burden of diarrheal diseases, progress has been uneven, with rural areas often experiencing higher prevalence rates due to inadequate access to safe drinking water, poor sanitation facilities, and limited hygiene practices. According to the World Bank (2023), about 25% of the Nigerian population lacks access to basic sanitation, and nearly 30% depend on unimproved water sources, both of which are critical contributors to the prevalence of waterborne diseases.

In Ohafia, the burden of diarrheal diseases among children under five is exacerbated by entrenched socio-cultural practices and inadequate public health infrastructure. Many communities rely on surface water sources such as streams and rivers, which are often contaminated with human and animal waste. Furthermore, open defecation remains a common practice in some areas, significantly increasing the risk of disease transmission. Parents and caregivers, often unaware of the importance of hygiene practices such as handwashing with soap, inadvertently expose children to pathogens, leading to recurrent diarrheal episodes.

While the Nigerian government has launched several water, sanitation, and hygiene (WASH) initiatives to address these challenges, their impact in rural settings like Ohafia has been limited due to poor implementation, weak community engagement, and lack of sustained funding. A study by Musa et al. (2021) highlights that over 60% of WASH projects in rural Nigeria fail within five years due to neglect of maintenance and operational challenges. This failure not only undermines the health of vulnerable populations but also wastes resources that could have been used for more sustainable interventions. The persistence of diarrheal diseases in Ohafia also places a significant economic and social burden on families. Caregivers often spend a substantial portion of their income on medical treatments for preventable conditions, while children suffer from malnutrition and growth delays as a result of repeated illnesses. This situation calls for urgent attention to identify effective, community-tailored WASH interventions that can break the cycle of disease and improve child health outcomes in the area.

This study is thus motivated by the pressing need to address these gaps by evaluating the role of WASH interventions in reducing the prevalence of diarrheal diseases among children under five in Ohafia Local Government Area. By understanding the specific challenges and successes of WASH programs in the region, this research aims to provide actionable recommendations for enhancing their effectiveness and sustainability.

1.3 General Objective:

The general objective of this study is to evaluate the role of Water, Sanitation, and Hygiene (WASH) interventions in reducing the prevalence of diarrheal diseases among children under five years in Ohafia Local Government Area, Abia State.

1.3.1 Specific Objectives

1. To assess the level of access to safe drinking water in households with children under five years in Ohafia Local Government Area.
2. To examine sanitation practices and their impact on the prevalence of diarrheal diseases among children under five years in Ohafia.
3. To evaluate hygiene practices, including handwashing behaviors, in households with children under five in Ohafia.
4. To identify barriers to the effective implementation of WASH interventions in Ohafia Local Government Area.

1.4 Research Questions

1. What is the level of access to safe drinking water in households with children under five years in Ohafia Local Government Area?
2. What are the sanitation practices in Ohafia, and how do they impact the prevalence of diarrheal diseases among children under five?
3. What are the hygiene practices, including handwashing behaviors, in households with children under five in Ohafia?
4. What are the barriers to the effective implementation of WASH interventions in Ohafia Local Government Area?