Project – Occurrence of typhoid fever Amongst children under 5 years in keffi metropolis Nasarawa state Nigeria.

CHAPTER ONE

INTRODUCTION

1.1 Background of the Study

Typhoid fever is a systemic infection caused by Salmonella enterica serotype Typhi, which primarily spreads through the ingestion of contaminated food and water (Crump & Mintz, 2010). The disease is highly prevalent in areas with poor sanitation, inadequate water treatment, and overcrowded living conditions. Globally, it remains a significant public health concern, particularly in low- and middle-income countries where infrastructure and healthcare access are limited (Ochiai et al., 2008).

The World Health Organization (WHO, 2018) estimates that between 11 and 20 million people contract typhoid fever each year, resulting in over 128,000 deaths worldwide. Children under the age of five are particularly vulnerable due to their developing immune systems, frequent exposure to unsafe water and food, and reliance on caregivers for hygiene practices. This age group, therefore, represents a critical demographic for intervention and surveillance.

In sub-Saharan Africa, typhoid fever is endemic and accounts for a substantial portion of pediatric morbidity and mortality (Crump et al., 2004). The infection burden varies across countries and regions, influenced by differences in sanitation, water supply, and healthcare delivery systems. Studies have shown that urban centers with rapid population growth and inadequate waste management are hotspots for typhoid transmission (Ochiai et al., 2008).

Nigeria, in particular, has witnessed a high incidence of typhoid fever, with significant regional disparities. Factors such as contaminated water sources, poor personal hygiene, and limited access to healthcare services exacerbate the situation (Odugbemi & Oyedepo, 2015). Children under five are disproportionately affected due to their limited immunity and frequent contact with contaminated environments.

Keffi, a rapidly expanding urban area in Nasarawa State, faces challenges that contribute to typhoid fever outbreaks. These challenges include inadequate sanitation, insufficient access to potable water, high population density, and improper waste disposal (Nasarawa State Ministry of Health, 2022). Such conditions create an ideal environment for the proliferation of Salmonella Typhi and increase the likelihood of infections among vulnerable populations, especially young children.

The clinical presentation of typhoid fever in children includes persistent high fever, abdominal pain, diarrhea or constipation, headache, and malaise (Parry et al., 2002). Severe cases may progress to intestinal perforation, hemorrhage, and death, highlighting the importance of early diagnosis and treatment. Unfortunately, in many Nigerian communities, delayed healthcare-seeking behavior among caregivers worsens outcomes for affected children.

Although vaccines and effective antibiotics exist, typhoid fever continues to impose a heavy burden on children under five in Nigeria (Crump & Mintz, 2010). Vaccine coverage remains low, and the rise of multidrug-resistant Salmonella Typhi strains threatens to complicate treatment, emphasizing the need for robust epidemiological studies to guide public health interventions.

Understanding the prevalence and risk factors of typhoid fever is essential for developing effective prevention strategies. Such knowledge helps health authorities prioritize resources, improve sanitation and water quality, and design awareness campaigns targeting caregivers and communities at risk (WHO, 2018).

Research focused on urban areas like Keffi is especially necessary because localized studies can capture the unique environmental and socio-demographic factors contributing to typhoid infections in children under five. These factors may include household water sources, food hygiene practices, caregiver knowledge, and access to healthcare facilities (Odugbemi & Oyedepo, 2015).

Furthermore, understanding these determinants aids in identifying high-risk populations and informs interventions such as vaccination campaigns, improved water supply systems, and hygiene education programs tailored to caregivers and community members. This approach reduces both morbidity and mortality associated with typhoid fever among young children.

Epidemiological surveillance also plays a crucial role in tracking the emergence of antibiotic-resistant strains, which have been increasingly reported in Nigeria (Crump & Mintz, 2010). Early detection of resistant strains allows for timely modification of treatment protocols and limits the spread of difficult-to-treat infections.

Given these realities, this study seeks to examine the occurrence of typhoid fever among children under five years in Keffi metropolis, Nasarawa State. It aims to provide evidence-based insights into prevalence patterns, risk factors, and caregiver practices, ultimately supporting interventions that improve child health outcomes in the region.

1.2 Statement of the Problem

Typhoid fever continues to pose a significant public health challenge in Nigeria, particularly among children under five years of age, who are highly susceptible due to immature immune systems and increased exposure to contaminated environments (WHO, 2018). Despite being a preventable and treatable disease, it remains endemic in many Nigerian communities.

In Keffi metropolis, anecdotal evidence suggests frequent occurrences of typhoid fever among children under five, yet there is limited empirical data documenting its prevalence and associated risk factors. This lack of localized research hinders the design of effective public health interventions.

Poor sanitation, inadequate access to clean water, overcrowding, and unsafe food handling practices exacerbate the spread of typhoid fever in urban areas like Keffi (Odugbemi & Oyedepo, 2015). Children under five are particularly at risk because they are more likely to ingest contaminated water or food and are less able to maintain personal hygiene.

Caregivers’ knowledge and attitudes toward disease prevention significantly affect children’s risk of infection. Inadequate awareness of hygiene practices and delays in seeking medical care contribute to the high morbidity and mortality associated with typhoid fever in young children (Parry et al., 2002).

The emergence of antibiotic-resistant Salmonella Typhi strains has further complicated treatment efforts (Crump & Mintz, 2010). Resistant infections increase treatment costs, prolong illness, and elevate the risk of severe outcomes and death, particularly among children under five.

Without evidence-based data on prevalence and risk factors, public health authorities in Keffi are limited in their ability to implement targeted interventions. Understanding local patterns of infection is crucial for designing preventive measures, such as vaccination campaigns, improved water supply systems, and hygiene education programs.

Consequently, this study addresses the urgent need for empirical research to determine the occurrence of typhoid fever among children under five in Keffi metropolis. The findings will provide critical insights for policymakers, healthcare providers, and community stakeholders seeking to reduce the burden of this preventable disease.

1.3 Objectives of the Study

The main objective of this study is to investigate the occurrence of typhoid fever among children under five years in Keffi metropolis, Nasarawa State, Nigeria. The specific objectives include:

1. To determine the prevalence of typhoid fever among children under five in Keffi metropolis.
2. To identify the socio-demographic and environmental factors contributing to typhoid fever infection in this population.
3. To assess caregivers’ knowledge, attitudes, and practices regarding typhoid fever prevention.
4. To find out the challenges of controlling typhoid fever in Nasarawa State

1.4 Research Question

The study seeks to answer the following research question:

• What is the prevalence of typhoid fever among children under five years in Keffi metropolis?
• What socio-demographic and environmental factors contribute to typhoid fever infection in children under five in Keffi metropolis?
• What is the level of caregivers’ knowledge and practices in preventing typhoid fever among children under five?
• What are the challenges of controlling typhoid fever in Nasarawa State

1.5 Hypothesis

H₀: There is no significant relationship between socio-demographic and environmental factors and the occurrence of typhoid fever among children under five in Keffi metropolis.

H₁: There is a significant relationship between socio-demographic and environmental factors and the occurrence of typhoid fever among children under five in Keffi metropolis.

1.6 Significance of the Study

The study is significant because it provides empirical data on the prevalence of typhoid fever among children under five in Keffi metropolis. While typhoid fever is recognized as a public health issue, there is limited localized data on its occurrence, particularly in rapidly growing urban areas like Keffi. By generating reliable prevalence data, the study fills an important knowledge gap and lays a foundation for effective public health planning and interventions.

Second, the study identifies key socio-demographic and environmental factors that contribute to typhoid fever infection. Understanding factors such as household sanitation, water sources, population density, and caregivers’ hygiene practices is essential for designing targeted preventive measures. By pinpointing the specific conditions that increase the risk of infection among children under five, the study helps in creating strategies that can reduce exposure and disease transmission within households and communities.

Third, the findings will guide health authorities and policymakers in developing educational programs for caregivers. Knowledge about proper hygiene, safe food preparation, and timely health-seeking behavior is critical in preventing typhoid fever in young children. Educational campaigns based on the study’s findings can empower caregivers to adopt preventive practices, ultimately improving health outcomes among children under five in Keffi metropolis.

In addition, the study provides insights for improving sanitation and water supply systems. Urban centers like Keffi often face challenges related to waste management and access to clean water. By linking environmental conditions to the prevalence of typhoid fever, the study supports initiatives to improve waste disposal, water supply, and overall living conditions, which are crucial for controlling the spread of the disease.

Moreover, the study contributes to the broader understanding of typhoid fever in urban settings. The findings can help identify patterns and risk factors that are common in other rapidly urbanizing areas, offering guidance for public health strategies in similar contexts. This broader perspective can aid in the development of regional interventions to control typhoid fever and other waterborne diseases effectively.

Finally, the research lays the groundwork for future studies on typhoid fever and other infectious diseases among children. By providing baseline data and highlighting key risk factors, the study facilitates further research and policy development. This ensures that interventions are evidence-based, contextually relevant, and sustainable, ultimately reducing the burden of typhoid fever among children under five.

1.7 Scope of the Study

The study focuses on children aged 0–59 months residing in Keffi metropolis, Nasarawa State, Nigeria. It examines the prevalence of typhoid fever, associated socio-demographic and environmental factors, and caregivers’ knowledge and practices regarding prevention. The study covers a period from January to December 2025 and is limited to selected health facilities and households within Keffi metropolis.

1.8 Operational Definition of Terms

• Typhoid Fever: A systemic infection caused by Salmonella enterica serotype Typhi, transmitted through contaminated food and water.
• Prevalence: The proportion of children under five affected by typhoid fever at a given point in time.
• Caregivers: Individuals responsible for the day-to-day care of children under five, typically parents or guardians.
• Environmental Factors: Conditions in the physical surroundings, such as water quality, sanitation, and hygiene practices, that may influence disease occurrence.

Project – Occurrence of typhoid fever Amongst children under 5 years in keffi metropolis Nasarawa state Nigeria.