This study investigates the effect of occupational exposure to pyrethroid insecticides on the blood chemo-profiles of workers in the Jazan region. This study was conducted to examine this issue, and workers were divided into exposure groups based on how long they had been employed—from one to two years to more than eight years. Blood samples were analyzed to determine their hematological and biochemical parameters, and their chemo-profiles were assessed by GCMS analysis. Workers exposed for 8+ years had a 3.7 times higher risk of chronic diseases than those exposed for 1–2 years (p < 0.01). Prolonged exposure to pyrethroid pesticides at work is linked to significant changes in blood chemical profiles. While gamma-glutamyl transferase (GGT) levels (p < 0.05) were rather increased by extended exposure times, albumin levels (p < 0.05) showed a significant decrease. These findings suggest re-evaluating and improving workplace safety practices to protect workers from extended pyrethroid exposure.

Methicillin-resistant Staphylococcus aureus (MRSA) surveillance in regions with mass gatherings presents unique challenges for public health systems. Saudi Arabia, hosting millions of pilgrims annually, provides a distinctive setting for studying how human mobility shapes bacterial populations, yet comprehensive genomic surveillance data from this region remain limited. Here, we present an integrated analysis of S. aureus isolates collected across seven Saudi Arabian regions, combining whole-genome sequencing with extensive antimicrobial susceptibility testing and standardized metadata following findability, accessibility, interoperability and reusability data principles. Our analysis revealed striking differences between pilgrimage and non-pilgrimage cities. Pilgrimage cities showed significantly higher genetic diversity and antimicrobial resistance rates, harbouring numerous international strains, including recognized clones from diverse geographic origins. Reported lineage dynamics are changing, expanding toward community clones. While genomic prediction of antimicrobial resistance showed high accuracy for some antibiotics, particularly beta-lactams, with varying performance for others, it highlights the necessity for phenotypic testing in clinical settings. Our findings demonstrate how mass gatherings drive bacterial population structures and emphasize the importance of integrated surveillance approaches in regions with significant global connectivity and travel.

This study investigates the effect of occupational exposure to pyrethroid insecticides on the blood chemo-profiles of workers in the Jazan region. This study was conducted to examine this issue, and workers were divided into exposure groups based on how long they had been employed—from one to two years to more than eight years. Blood samples were analyzed to determine their parameters, and their chemo-profile was assessed by GCMS analysis. The study showed that as exposure durations rise, blood parameter alterations become more significant. Those exposed for more than eight years were far more sensitive than those exposed for shorter periods of time, and the prevalence of chronic disorders rose dramatically. The findings show a direct link between prolonged exposure to pyrethroid insecticides at work and changes in blood chemical profiles. The study emphasizes the importance of improved safety practices at work and the continuous exposure of workers to hazardous components while they undergo monitoring.