Improved Isolation of Salmonella enterica serovar Typhimurium Using the Walk-Away Specimen Processor and FecalSwab Transport System

Abstract
This study was performed with the main objective of evaluating the isolation of Salmonella enterica serovar Typhimurium from stool using the automated Walk-Away Specimen Processor (WASP) and novel COPAN FecalSwab and selenite media. WASP automated planting improved colony isolation compared to those planted using the isoplater, while COPAN selenite broth increased the limit of Salmonella detection in spiked-stool specimens. These features would improve discrimination and isolation of enteric pathogens, increasing the likelihood of establishing the etiology of diarrheal illness due to bacterial pathogens.