ArticleBMC public health2024
Surveillance of public health pathogens in Lagos wastewater canals: a cross-sectional study.
Article in BMC public health, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 2 of them syntheses that pooled it.
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Who cites it
7 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- A Systematic Review of Gastrointestinal and Respiratory Pathogen Detection in Wastewater in Africa, with Focus on Rwanda: Implications for Early Warning and Public Health Surveillance.Pathogens (Basel, Switzerland) · 2026Pooled it
- Systematic review on the laboratory methodology for conducting wastewater and environmental surveillance forFrontiers in public health · 2026Pooled it
- Wastewater reuse for production of plant-based foods: does spore-formingApplied and environmental microbiology · 2026Review
- Household wastewater as a sentinel for community-level antimicrobial resistance: a cross-sectional study in Gombe, Nigeria.Scientific reports · 2026Article
- Community-led standards for global wastewater-based infectious disease surveillance.PLOS global public health · 2026Article
- Incidence and temporal distribution of SARS-CoV-2 circulating in the municipal wastewaters of the Buffalo City region, Eastern Cape, South Africa.Global epidemiology · 2025Article
- One-Year Monitoring of the Evolution of SARS-CoV-2 Omicron Subvariants Through Wastewater Analysis (Central Italy, August 2023-July 2024).Life (Basel, Switzerland) · 2025Article
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Authors and funding
14 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundWastewater-based epidemiology (WBE) is already being adopted for the surveillance of health conditions of communities and shows great potential for the monitoring of infectious pathogens of public health importance. There is however paucity of robust data to support extensive WBE in Nigeria. This study evaluated the prevalence of clinically relevant infectious pathogens and provided antimicrobial resistance profiles of bacteria pathogens in wastewater canals in Lagos State at a single point in time.
methodsThis is a cross-sectional survey of wastewater canals in 20 Local Government Areas (LGAs) in Lagos State for detection of bacteria pathogens of public health importance including non-tuberculous mycobacteria and SARS-Cov-2 virus using cultural analysis and conventional Polymerase Chain Reaction (PCR) techniques. Descriptive epidemiological survey of communities around the canals was done using questionnaires to assess exposure pathways. Statistical analysis was done using SPSS version 27 while P value of < 0.05 was considered as significant.
resultsThree thousand and fifty-four (3054) questionnaires were administered to 1215 (39.8%) females and 1658 (54.3%) males in communities situated around 40 canals in 20 LGAs. Although majority (81.8%) reported using water closet toilet system and pit latrine (12.5%), a few of them admitted to open defaecation [101 (3.3%)] while 299 (9.8%) engaged in open field waste disposal. SARS-CoV-2 was not detected from wastewater in this study. Two mycobacterial species that included Mycobacterium fortitium group (13, 32.5%) and Mycobacterium kansasii (11, 27.5%) were identified in 15 out of 20 LGAs sampled. A total of 123 bacteria pathogens were isolated across the 40 canals. Prominent enteropathogens isolated included Escheriachia coli (28.5%), Salmonella spp (16.3%), Vibro cholerae (10.6%) and Shigella spp (5.7%). Extended spectrum beta-lactamase genes were prominent (87.5%) in the wastewater samples with almost a half (42.5%) of the canals containing both SHV and CTX-M.
conclusionThis study highlights the presence of pathogens with potential to cause epidemic in wastewater canals in Lagos State and provides evidence to inform policy and strategies for wastewater monitoring and treatment. Further studies involving longitudinal monitoring of time-based variations is needed to identify trends in pathogen loads and AMR patterns over time.
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