Journal
PATHOGENS
Volume 11, Issue 7, Pages -Publisher
MDPI
DOI: 10.3390/pathogens11070812
Keywords
Campylobacter jejuni; Salmonella; co-culture; survival; poultry production
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Campylobacter and Salmonella are the two major foodborne zoonotic diseases in Europe, with poultry as the main source of infection. In this study, it was found that the survival of C. jejuni, a type of Campylobacter, was significantly higher when co-cultured with Salmonella. The presence of Salmonella positively affected the survival of C. jejuni, but the extent of the effect depended on the Salmonella serotype, C. jejuni strain, and initial concentration. These findings suggest potential interactions between Salmonella and C. jejuni that need further investigation for a better understanding of their behavior in natural habitats.
Campylobacter and Salmonella are responsible for the two major foodborne zoonotic diseases in Europe; poultry is the main infection source. Campylobacter cannot grow under aerobic conditions, but can show aerobic survival when co-cultured with other microorganisms; however, its interaction with Salmonella has not been studied yet. In this study, these two bacteria were co-cultured under controlled aerobic conditions. Different concentrations and strains of C. jejuni were incubated with or without different Salmonella serotypes (10 CFU) at 37 degrees C for 16 h. C. jejuni did not grow after incubation with or without Salmonella. The survival of C. jejuni was observed only for the highest initial concentration of 6 log CFU/mL with or without Salmonella. However, its survival was significantly higher when co-cultured with Salmonella. No survival was observed at lower concentrations. C. jejuni survival was positively affected by the presence of Salmonella but depended on the Salmonella serotype, the C. jejuni strain and the initial concentration. On the other hand, the Salmonella enumerations were not affected by C. jejuni. Our results suggest potential interactions between Salmonella and C. jejuni that require further investigations for a clearer understanding of their behavior in natural habitats.
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