Dr Juan Carrique-Mas from OUCRU, our Clinical Research Unit in Ho Chi Minh City, Vietnam, tell us about his research in the development of antimicrobial resistance in small-scale poultry production. Many households in Vietnam raise animals for food production, particularly chickens, using large amounts of antimicrobials with no veterinary support, and those antimicrobials find their way into the food chain. The ViParc project conducts intervention trials similar to human clinical trials, to help farmers reduce the level of antimicrobials used when raising chickens.