TABLE 3.

Plasmid content of 64 selected E. aerogenes strains

Enzyme (n)aYear(s)Profile R/EbPresence of plasmid and hybridizationcNo. of isolates by year
180 kb85 kb
TEM-24 (24)88/94A/1+2/1
91A/11
89/90/91A/1+1/1/1
89/90/92/94/96/98e/99A/11/1/1/1/2/10/1
TEM-3 (12)88/89/96/99A/11/1/1/1
90/94/98A/1+1/1/1
91/98A/1-E/2+1/2
92/97A/11/1
TEM-8 (1)91A/4+1
SHV-4 (3)93/94/98B/1-E/4-F/21/1/1
TEM-1/2 (12)93B/11
88-92/94-99A/11/1
Non-TEM/SHV (12)90A/1+1
88/89/91-9911 different profilesd1/1/1
  • a n, no. of strains.

  • b R/E, Ribotyping/ERIC-PCR.

  • c Plasmid presence (+) and positive hybridization with TEM probe (⊕).

  • d B/8-G/1-H/7-I/5-J/1-K/2-L/9-M/1-N/7-O/3-P/3.

  • e 1998: the year of the multicentric study (strains producing TEM-24 isolated from 10 of 12 different centers).