Antimicrobial resistance and phylogenetic diversity of Escherichia coli isolates from coastal recreational waters in Costa Rica

Key Points

• Findings highlight significant antimicrobial resistance in 35% of Escherichia coli isolates.
• Isolation of diverse Escherichia coli phylogenetic lineages reveals ecological implications for coastal waters.
• Assessment based on samples collected from recreational coastal waters in Costa Rica.
• Supports the need for ongoing monitoring of antimicrobial resistance in environmental microbiology.