Evaluation of an enhanced cleaning and disinfection protocol in Salmonella contaminated pig holdings in the United Kingdom. - Martelli, Francesca; Lambert, Mark; Butt, Paul; Cheney, Tanya; Tatone, Fabrizio Antonio; Callaby, Rebecca; Rabie, André; Gosling, Rebecca J.; Fordon, Steve; Crocker, Graham; Davies, Robert H.; Smith, Richard Piers (PLoS ONE, 2017)