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. 2015 Nov 2;57:74. doi: 10.1186/s13028-015-0166-3

Table 2.

Description of ESBL harboring samples and bla CTX-M variants found in investigated countries

CTX-M group Denmark England Ireland Latvia Poland Portugal Spain Sweden Netherlands
Samples (n) 158 133 266 424 280 425 695 217 560
ESBL genotypes (n)a 0 50 12 98 2 74 572 74 280
ESBL samples(%)b (0) (27.1) (4.5) (17.4) (0.7) (12.7) (74.8) (20.7) (37.8)
1
 CTX-M-1 5.3c 2.6 4.2 0.4 1.4 3.2 2.3 21.3
 CTX-M-3 0.8 0.2 0.1 0.2
 CTX-M-15 4.5 0.4 3.5 0.5 1.3 13.8 2.1
 CTX-M-32 0.4 0.5 0.4 0.7 2.9 0.7
 CTX-M-55 0.2
2
 CTX-M-2 1.5 3.3 2.1
8
 CTX-M-8 0.1
9
 CTX-M-9 0.2 2.7 0.2
 CTX-M-14 8.3 2.4 16.8 0.9 1.4
 CTX-M-14b 1.5 0.2 1.2 0.9 0.4
 CTX-M-24 1.4
 CTX-M-27 0.8
 CTX-M-65 0.2
 TEMd 3.0 0.7 6.6 26.2 3.6
 SHVd 12.0 1.1 10.1 5.6 27.8 14.7 17.9

aTotal number of ESBL genotypes (n) in each country. Note that some bacterial strains carried more than one ESBL genotype

bPercentage (%) of total number of samples carrying ESBL

cPercentage (%) of the total n the total number of ESBL in each country umber of ESBL in each country belonging to a certain genotype

dPercentage (%) of TEM and SHV of the total number of ESBL in each country. However, note that a bla TEM and bla SHV genotype present in the same bacterial strain as another ESBL genotype could be bla TEM-1, bla TEM-2, or bla SHV-1 which are not considered true ESBL genotypes, but the original genes from which later genotype variants are derived from