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Public Health Risks associated with AMR in food crops (led by LSHTM)

Across the globe, antimicrobials are used on certain crops to protect the plant from bacterial and fungal diseases and although evidence supporting transmission pathways for AMR through crop production and its value chains is limited, a recent global survey of agricultural advisors supports that antibiotic usage on food crops is more common than previously thought . There is growing concern that use of antimicrobials on crops might persist as residues on harvested food. Food crops also risk contamination with resistant microbes previously exposed to human and veterinary antimicrobials that are deposited on plants from agricultural inputs such as manure, irrigation water, and soil. After the crops are harvested, low-dose exposure to antimicrobial residues or to resistant microbes could increase the risk of AMR development in people. Using a scoping review of the literature to build a conceptual framework, this project aims to describe the current state of knowledge and to summarize the public health risk factors and transmission pathways of antimicrobial resistance through crop systems, with a focus on LMICs.

CGIAR and London School of Hygiene & Tropical Medicine (LSHTM) are collaborating on a project to explore the public health risks associated with antimicrobial resistance (AMR) present in food crops and to understand the transmission route further.