Abstract
Campylobacter spp. is an important cause of gastroenteritis in humans throughout the world. However, sources of these infections are often difficult to identify. Therefore, this study aimed at analyzing the genetic relatedness of Campylobacter isolates from environmental and food samples as well as stool specimens of diarrheal patients obtained in a single geographic region in Poland. Only a few Campylobacter jejuni isolates (4/18, 22%) could be assigned to one cluster, whereas the majority were unrelated. In contrast, the majority of Campylobacter coli strains (25/35, 71%) belonged to three pulsed-field gel electrophoresis (PFGE) clusters containing isolates of various origins (i.e., water samples, chicken carcasses, and humans). Isolates belonging to the clusters showed also similar antibiotic resistance patterns and similar genotypes with respect to the occurrence of the virB11 and iam genes. This suggests that Campylobacter strains may circulate between humans, poultry, and recreational water sources in the rural region in central Poland.
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