sentence: Thus , corvids are strong candidates to play a role both in the transmission of zoonotic pathogens between food-producing animals and in causing sporadic cases of infection among humans that are difficult to trace to a source.The aims of the present study were to investigate the occurrence of Campylobacter , Salmonella , Yersinia and the STEC / VTEC serotype O157 : H7 , as well as carbapenemase and extended spectrum cephalosporinase-producing Enterobacteriaceae ( CPE and ESCE ) , among corvid birds in rural areas in southern Sweden , and to determine the relevance of any findings by genomic comparison to isolates previously recovered from humans or domestic animals .