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Volume 7, Number 3—June 2001
Dispatch

Expanding Drug Resistance through Integron Acquisition by IncFI Plasmids of Salmonella enterica Typhimurium

Alessandra Carattoli*Comments to Author , Laura Villa*, Cristina Pezzella*, Eugenio Bordi†, and Paolo Visca†‡
Author affiliations: *Istituto Superiore di Sanità, Rome, Italy; †National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy; ‡Università di Roma Tre, Rome, Italy

Main Article

Table

Designation and relevant characteristics of representative IncFI plasmids used for genetic analysis of integrons

No. Plasmid Host strain Origin, yeara Resistance patternb Trac kb Ref.
1 IncFI/97 ST 366 Albania, 1997 Ap Cm Sm Sp Su Tc Hg Km Tp + 120 7
2 NTP101 ST DT 208 England, 1974 Ap Cm Sm Sp Su Tc Hg - 135 3
3 pZM3 SW 20 Algeria, 1970 Ap Cm Sm Sp Su Tc Hg Km + 165 10
4 TP181 ST DT 208 Iran, 1975 Ap Cm Sm Sp Su Tc Hg Km + 165 3
5 pZM111 SW WZM111 Italy, 1978 Ap Cm Hg Km Gm + 130 5
6 PZM61 SW WZM6 Italy, 1974 Ap Cm Tc Hg Km - 145 11

a Year of isolation.
b Abbreviations: Ap = ampicillin; Cm = chloramphenicol; Sm = streptomycin; Sp = spectinomycin; Su = sulfonamides; Tc = tetracycline; Hg = mercuric ions; Km = kanamycin; Tp = trimethoprim; Gm = gentamicin.
cAutotransferring properties.

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References
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