Travel-associated Salmonella and Campylobacter gastroenteritis in England: Estimation of under-ascertainment through national laboratory surveillance

Increased international travel raises the importance of accurate surveillance of travel-associated gastroenteric pathogens to improve treatment and the investigation of cross-border outbreaks. This study found that 45% of Salmonella and 17% of Campylobacter infections in England were travel-associated, but only 29 and 3%of travel histories were accurately identified by national laboratory surveillance. More structured data collection forms and staff training may be needed to address this.