Skip to main content

Table 1 Number of shipments positive for ESBL- or pAmpC-producing E. coli in total each year per gene groups detected in each shipment

From: Decreased detection of ESBL- or pAmpC-producing Escherichia coli in broiler breeders imported into Sweden

Year No. of shipments No. of positive shipments No. of positive shipments per bla-gene group
CIT CTX-M-1 SHV CTX-M-1 + CIT CIT + SHV CTX-M-1 + SHV NDa
2010 5 3 3       
2011 8 8 8       
2012 9 5 3       2
2013 10 4 1 2    1   
2014 12 5 3 1     1  
2015 16 13 9 3   1    
2016 16 4 2 1 1     
2017 15 1 1       
2018 16 0        
2019 15 0        
  1. aNot determined: The isolates from these shipments where lost and not available for confirmation. The occurrence of pAmpC-producing E. coli carrying genes belonging to the blaCMY-group in the birds from these shipments has been confirmed in subsequent sampling with boot swabs in these flocks (data not shown)