A Comparative Study on Helminth Contamination in Market and Street Fair Vegetables: Public Health Implications

Abstract

Introduction: The contamination of food by intestinal helminths poses a significant public health challenge, especially in regions where sanitary conditions are poor. This study addresses the prevalence of parasites in leafy vegetables sold in markets and street fairs. Objective: To analyze and compare the prevalence of intestinal helminths in leafy vegetable samples collected from street fairs and supermarkets in Bahia. Methodology: Ten samples of leafy vegetables were collected from different points of sale, stored in sterile bags, and transported for laboratory analysis. The samples were washed with sterile distilled water, and the resulting sediment was microscopically examined after the addition of Lugol's solution. A brief mention of the statistical methods used to compare the prevalence between the locations, such as chi-square tests or descriptive analysis, could strengthen the methodology and provide additional clarity. Results and Discussion: In the market, Entamoeba sp. was the most prevalent species, accounting for 41.25% of occurrences, while in the street fair, Taenia sp. predominated, representing 43.75% of the samples. The comparison revealed significant variations between the locations, reflecting possible differences in hygiene and handling practices. Including the specific number of samples analyzed in this section (10 samples) helps improve the transparency and reliability of the findings. Conclusion: The prevalence of different helminths in both locations highlights the importance of targeted sanitary interventions to improve food safety and reduce the risk of parasitic infection. Additionally, future studies should aim to use larger sample sizes and incorporate advanced statistical methods to validate and expand on these findings. Explicitly stating the statistical tools used for comparison can further substantiate the results and guide interventions more effectively.