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Volume 11, Number 1—January 2005

Research

Genetic Background of Escherichia coli and Extended-spectrum β-Lactamase Type

Author affiliations: *Hôpital Louis Mourier, AP-HP, Colombes, France; †INSERM E0339, Paris, France; ‡Hôpital Nord, Amiens, France; §Hôpital Tenon, Paris, France; ¶Hôpital Trousseau, Paris, France; #Hôpital Morvan, Brest, France

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Table 2

Distribution of ESBL types according to strain origin*

ESBL type 
(no. strains) No. strains isolated from
UTI Other infections Colonization
TEM (55)
TEM-24 11 9 11
TEM-52 3 0 7
TEM-21 5 1 2
TEM-3 1 0 3
TEM-10 0 0 1
TEM-20 1 0 0
SHV (22)
SHV2 3 1 2
SHV4 1 1 1
SHV5 2 0 1
SHV12 5 4 1
CTX-M (52)
CTX-M-1 cluster 20 2 7
CTX-M-2 cluster 3 0 1
CTX-M-9 cluster 9 4 6

*ESBL, extended-spectrum β-lactamase; UTI, urinary tract infection.

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