Table 4.
Genotypic characterization of CTX-M-15-producing E. coli and K. pneumoniae isolates
| Species and isolate | City | Hospitala | Phylogenetic group | Clone | Genetic context of blaCTX-M-15b |
|---|---|---|---|---|---|
| E. coli | |||||
| CM2 | Buenos Aires | H6 | B2 | Ec1 | II |
| L4 | Buenos Aires | H3 | B2 | Ec2 | I |
| M1 | Buenos Aires | H7 | A | Ec3 | II |
| SM4 | Buenos Aires | H8 | A | Ec4 | II |
| SM5 | Buenos Aires | H8 | A | Ec5 | I |
| T1 | Chubut | H13 | B2 | Ec2 | I |
| T3 | Chubut | H13 | B2 | Ec6 | I |
| K. pneumoniae | |||||
| B4 | Buenos Aires | H4 | NDc | Kp2 | I |
| CL1 | Buenos Aires | H1 | ND | Kp3 | I |
| CL4 | Buenos Aires | H1 | ND | Kp1 | I |
| CL6 | Buenos Aires | H1 | ND | Kp7 | II |
| CL9 | Buenos Aires | H1 | ND | Kp4 | I |
| CM4 | Buenos Aires | H6 | ND | Kp1 | I |
| CV1 | Buenos Aires | H7 | ND | Kp5 | II |
| I3 | Santa Fe | H5 | ND | Kp1 | I |
| I4 | Santa Fe | H5 | ND | Kp1 | I |
| L5 | Buenos Aires | H3 | ND | Kp6 | I |
| T8 | Chubut | H13 | ND | Kp8 | I |
H1, Hospital de Clínicas, Universidad de Buenos Aires; H3, Hospital Alemán, Ciudad Autónoma de Buenos Aires (CABA); H4, Hospital Británico, CABA; H5, Hospital Iturraspe, Santa Fe; H6, CEMIC, CABA; H7, Sanatorio Mater Dei, CABA; H8, Hospital Eva Perón, Buenos Aires; H13, Hospital de Trelew, Chubut.
I, international blaCTX-M-15 genetic environment (GenBank accession no. NC013121.1; II, truncated ISEcp1-blaCTX-M-15 genetic environment (GenBank accession no. HQ157353) (11).
ND, not determined.