Epidemiological dynamics and associated risk factors of<i>S. haematobium</i>in humans and its snail vectors in Nigeria: a meta-analysis (1983–2018)

Odeniran, Paul Olalekan; Omolabi, Kehinde F.; Ademola, Isaiah Oluwafemi

doi:10.1080/20477724.2020.1728164

Cited by 7 publications

(9 citation statements)

References 94 publications

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“…The present study revealed that 12.3% of B. globosus was infected by S. haematobium. Similarly, high pooled prevalence (18%) of S. haematobium among B. globosus was recently reported in a meta-analysis from Nigeria [ 96 ]. Bulinus truncatus are the other important Bulinus snails that serve as an intermediate host for S. haematobium in Africa.…”

Section: Discussionmentioning

confidence: 66%

“…These variations might be associated with the difference in the level of endemicity of S. haematobium in the countries. A recent review indicated that about one-third of the populations of Nigeria were infected by S. haematobium [ 95 , 96 ]. The higher infection intensity in the population might lead to a high level of environmental contamination that resulted in higher snail infection in Nigeria.…”

Section: Discussionmentioning

confidence: 99%

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Prevalence of Schistosoma mansoni and S. haematobium in Snail Intermediate Hosts in Africa: A Systematic Review and Meta-analysis

Hailegebriel

Nibret

Munshea

2020

Journal of Tropical Medicine

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Background. Schistosomiasis is caused by Schistosoma mansoni and S. haematobium in Africa. These schistosome parasites use freshwater snail intermediate hosts to complete their lifecycle. Varied prevalence rates of these parasites in the snail intermediate hosts were reported from several African countries, but there were no summarized data for policymakers. Therefore, this study was aimed to systematically summarize the prevalence and geographical distribution of S. mansoni and S. haematobium among freshwater snails in Africa. Methods. Literature search was carried out from PubMed, Science Direct, and Scopus which reported the prevalence of S. mansoni and S. haematobium among freshwater snails in Africa. The pooled prevalence was determined using a random-effect model, while heterogeneities between studies were evaluated by I2 test. The meta-analyses were conducted using Stata software, metan command. Results. A total of 273,643 snails were examined for the presence of S. mansoni and S. haematobium cercaria in the eligible studies. The pooled prevalence of schistosome cercaria among freshwater snails was 5.5% (95% CI: 4.9–6.1%). The pooled prevalence of S. mansoni and S. haematobium cercaria was 5.6% (95% CI: 4.9–6.3%) and 5.2% (95% CI: 4.6–5.7%), respectively. The highest pooled prevalence was observed from Nigeria (19.0%; 95% CI: 12.7–25.3%), while the lowest prevalence was reported from Chad (0.05%; 95% CI: 0.03–0.13). Higher prevalence of schistosome cercaria was observed from Bulinus globosus (12.3%; 95% CI: 6.2–18.3%) followed by Biomphalaria sudanica (6.7%; 95% CI: 4.5–9.0%) and Biomphalaria pfeifferi (5.1%; 95% CI: 4.1–6.2%). The pooled prevalence of schistosome cercaria obtained using PCR was 26.7% in contrast to 4.5% obtained by shedding cercariae. Conclusion. This study revealed that nearly 6% of freshwater snails in Africa were infected by either S. haematobium or S. mansoni. The high prevalence of schistosomes among freshwater snails highlights the importance of appropriate snail control strategies in Africa.

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Section: Discussionmentioning

confidence: 66%

Section: Discussionmentioning

confidence: 99%

Prevalence of Schistosoma mansoni and S. haematobium in Snail Intermediate Hosts in Africa: A Systematic Review and Meta-analysis

Hailegebriel

Nibret

Munshea

2020

Journal of Tropical Medicine

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“…This estimate differs from other recently published national estimates of schistosomiasis prevalence in Nigeria, which range from 27.9% 3 to 32.1%. 22 Differences in methodology and study population are likely responsible for some of the discrepancy. Ekpo et al.…”

Section: Discussionmentioning

confidence: 99%

“…Odeniran et al. 22 also performed a meta-analysis of published studies between 1983 and 2018 but focused only on the prevalence of S. haematobium infections. Both studies’ prevalence estimates reflect study populations of children aged 5 to 14 years.…”

Section: Discussionmentioning

confidence: 99%

Schistosomiasis Seroprevalence among Children Aged 0–14 Years in Nigeria, 2018

Straily,

Tamunonengiyeofori,

Wiegand

et al. 2024

The American Journal of Tropical Medicine and Hygiene

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The first nationally representative, population-based study of schistosomiasis seroprevalence in Nigeria was conducted using blood samples and risk-factor data collected during the 2018 Nigeria HIV/AIDS Indicator and Impact Survey (NAIIS). Schistosomiasis seroprevalence was estimated by analyzing samples for reactivity to schistosome soluble egg antigen (SEA) in a multiplex bead assay; NAIIS survey data were assessed to identify potential risk factors for seropositivity. The SEA antibody data were available for 31,459 children aged 0 to 14 years. Overall seroprevalence was 17.2% (95% CI: 16.3–18.1%). Seropositive children were identified in every age group, including children < 5 years, and seroprevalence increased with increasing age (P < 0.0001). Several factors were associated with increased odds of seropositivity, including being a boy (odds ratio [OR] = 1.34, 95% CI: 1.24–1.45), living in a rural area (OR = 2.2, 95% CI: 1.9–2.5), and animal ownership (OR = 1.67, 95% CI: 1.52–1.85). Access to improved sanitation and drinking water sources were associated with decreased odds of seropositivity (OR = 0.52, 95% CI: 0.47–0.58 and OR = 0.53, 95% CI: 0.47–0.60, respectively) regardless of whether the child lived in a rural (sanitation: adjusted odds ratio [aOR] = 0.7, 95% CI: 0.6–0.8; drinking water: aOR = 0.7, 95% CI: 0.6–0.8) or urban area (sanitation: aOR = 0.6, 95% CI: 0.5–0.7; drinking water: aOR = 0.5, 95% CI: 0.4–0.6), highlighting the importance of these factors for schistosomiasis prevention and control. These results identified additional risk populations (children < 5 years) and a new risk factor (animal ownership) and could be used to monitor the impact of control programs.

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“…In Nigeria, both S. haematobium and S. mansoni have been reported, and the former is more widely distributed [10]. Approximately 29 million people have been estimated to have been infected with S. haematobium in Nigeria, whereas 101.3 million are at risk of the infection [11,12]. The high prevalence of S. haematobium in Nigeria poses a public health problem, particularly in school-aged children between the ages of 5 and 15 years [10,13], owing to their proclivity for engaging in domestic activities and frequent contact with contaminated water, such as through group swimming and fishing in snail-infested water bodies after school.…”

Section: Introductionmentioning

confidence: 99%

Urinary Schistosomiasis and Associated Risk Factors Among Primary School Students in the Zaki Local Government Area, Bauchi State, Nigeria

Abubakar

ABUBAKAR

Moi

et al. 2022

Dr. Sulaiman Al Habib Med J

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Urinary schistosomiasis, a water-based disease, is endemic to Nigeria. The infection is transmitted by trematodes known as Schistosoma haematobium. The goal of this study was to determine the occurrence of urinary schistosomiasis among primary school children in the Zaki Local Government Area, Bauchi State, Nigeria. A cross-sectional study involving 300 school pupils from three primary schools in Zaki was conducted between June and November of 2021. The urine samples were examined with the sedimentation technique to detect S. haematobium eggs. Data on socio-demographic characteristics and risk factors were obtained through a well-structured questionnaire. In SPSS version 24, the associations between the dependent and independent variables were evaluated with Chi-square, bivariate, and multiple logistic regression analyses. The strength of associations was determined with the odds ratio (OR) and 95% confidence interval. Urinary schistosomiasis was found in 29.7% of school-aged children in the three primary schools. Significantly higher prevalence was observed in the Almajiri (informal) school (59.6%) and one public primary school (31.5%), P = 0.001. Boys were four times more likely than girls to have schistosomiasis [AOR (95% CI): 4.38 (2.23–8.60)]. Children who played in shallow water had a higher risk of contracting schistosomiasis infection and were five times more likely to be infected [AOR (95% CI): 5.14 (1.97–13.37)]. Children who had blood in their urine (hematuria) were nearly nine times more likely to be infected [AOR (95% CI): 9.64 (4.79–20.66)]. The present study indicated that urinary schistosomiasis is endemic to the study area in the Zaki Local Government Area, with a moderate infection rate.

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Epidemiological dynamics and associated risk factors ofS. haematobiumin humans and its snail vectors in Nigeria: a meta-analysis (1983–2018)

Cited by 7 publications

References 94 publications

Prevalence of Schistosoma mansoni and S. haematobium in Snail Intermediate Hosts in Africa: A Systematic Review and Meta-analysis

Prevalence of Schistosoma mansoni and S. haematobium in Snail Intermediate Hosts in Africa: A Systematic Review and Meta-analysis

Schistosomiasis Seroprevalence among Children Aged 0–14 Years in Nigeria, 2018

Urinary Schistosomiasis and Associated Risk Factors Among Primary School Students in the Zaki Local Government Area, Bauchi State, Nigeria

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