Table 1

Shigella drug resistance patterns with associated serotypes, plasmid profiles, and PFGE fingerprint patterns from California, 2004-2005.

Resistance pattern to the NARMS antimicrobial panel

% of isolates with resistance profile (no.)

Plasmid profile groups detected (no.)^a

Species of isolates with plasmids (no.)

PFGE patterns

STR, FIS, TET, SXT

33% (14)

II, X(3), VIII

S. sonnei (4), S. flexneri

III, V, VI, IX, X

AMP, STR, FIS, TET, SXT

14% (6)

II(4), VI

S. sonnei (5)

I, IV, VII, VIII, XI, XII

AMP, CHL, STR, FIS, TET

10% (4)

none

none

AMP, CHL, TET

7% (3)

VII

S. flexneri 3a

XX, XXIII, XV

AMP, CHL, STR, FIS, TET, SXT

7% (3)

IV(2), V

S. flexneri 3a (2), S. sonnei

TET

5% (2)

I, IV

S. flexneri 1b (2)

XIX

AMP, CHL, FIS, TET

5% (2)

IV(2)

S. flexneri 2a (2)

XVII

CHL, STR, FIS, TET, SXT

5% (2)

V(2)

S. flexneri 1c (2)

XV

AMP, CHL, FIS, TET, SXT

2% (1)

IV

S. flexneri 2a

XVIII

AMP, KAN, STR, FIS

2% (1)

IV

S. sonnei

XIII

CHL, FIS, TET, SXT

2% (1)

III

S. flexneri Y var.

XXIV

AMP, CHL, STR, TET

2% (1)

IX

S. flexneri 1b

XIV

AMP, STR, FIS, SXT

2% (1)

IX

S. sonnei

AMC, AMP, GEN, STR, FIS

2% (1)

IV

S. flexneri

^a Of the 42 isolates tested, 62% (n = 26) had plasmids detected while 38% (n = 16) did not.

Al-Nimri et al. BMC Infectious Diseases 2009 9:184   doi:10.1186/1471-2334-9-184