Microbiological Quality Assessment of Ready-to-Eat Foods in Urban Markets: A Public Health Perspective

The safety of ready-to-eat (RTE) foods in urban markets remains a pressing public health concern, particularly in low- and middle-income countries, where informal food vending is prevalent. This study critically examines the microbiological quality of RTE foods sold in urban markets, identifying key contamination pathways, assessing associated health risks, and proposing actionable strategies for improvement. Guided by a structured conceptual framework, the research synthesizes global and regional literature, with emphasis on African contexts, including Nigeria and Ghana, to provide a nuanced understanding of the sector. The review identifies contamination at both pre- and post-processing stages, aggravated by inadequate sanitation, poor vendor hygiene, improper storage, and insufficient cold chain infrastructure. Distribution and retail environments, coupled with climatic variables such as rising temperatures, humidity, and flooding, further amplify microbial risks. Common hazards include Escherichia coli, Salmonella spp., Listeria monocytogenes, Staphylococcus aureus, and mycotoxin-producing fungi—agents responsible for acute gastrointestinal illness and, with persistent exposure, chronic conditions such as cancer, immune suppression, and antimicrobial resistance. The study highlights significant public health and socio-economic burdens arising from unsafe RTE foods, including high treatment costs, loss of productivity, and diminished consumer confidence in food systems. It emphasizes that vendor practices, consumer awareness, and community engagement play pivotal roles in risk reduction, with evidence from behavior change campaigns and branded safety certification schemes demonstrating positive outcomes. In conclusion, ensuring the microbiological safety of RTE foods demands an integrated approach: rapid detection technologies, environmental monitoring programs, targeted vendor training, infrastructural support, climate-resilient food safety frameworks, and sustained public education. Recommendations advocate for multi-stakeholder collaboration among regulatory authorities, food businesses, academia, and consumers to foster a robust food safety culture that is both sustainable and contextually relevant.