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Table 3 Characteristics of carbapenem-resistant Acinetobacter baumannii isolates from hospitalized patients and environment at Mulago Hospital in Kampala, 2007–2009

From: Carbapenem resistant Pseudomonas aeruginosa and Acinetobacter baumannii at Mulago Hospital in Kampala, Uganda (2007–2009)

Isolate no.

Month/year of isolation

Source

Isolation material

Resistance pattern

MHT

IMP-EDTA

Carbapenemase genes

Other genetic determinants

bla OXA-23-like

bla OXA-24-like

bla OXA-51-like

bla OXA-58-like

bla IMP-like

bla VIM-like

bla SPM-like

bla NDM-like

Class 1 Integrons

J052-2

04/2008

Patient

Cerebral spinal fluid

CIP-CN-TZP-ATM-FEP-IMP-MEM

Yes

No

Yes

No

Yes

Yes

No

No

No

No

No

A081-7

04/2008

Patient

Ear swab

TZP-ATM-IMP

No

No

No

No

Yes

No

No

No

No

No

Yes

J093

08/2008

Patient

Ear swab

TZP-IMP-MEM

No

No

No

No

Yes

No

No

No

No

No

Yes

R100

07/2009

Patient

Sputum

CIP-CN-TZP-CAZ-ATM-IMP-MEM

No

Yes

No

No

Yes

Yes

No

Yes

No

No

No

1942

07/2009

Patient

Ear swab

CIP-IMP-MEM

Yes

No

Yes

No

Yes

No

No

No

No

No

Yes

C5

08/2009

Patient

Tracheal aspirate

CIP-TZP-IMP-MEM

No

Yes

Yes

No

Yes

No

No

No

No

No

Yes

S20

09/2009

Patient

Tracheal aspirate

CIP-CN-TZP-ATM-AK-IMP-MEM

Yes

No

No

No

Yes

Yes

No

No

No

No

Yes (ant(4′)-Iib)

2608-2

09/2009

Patient

Tracheal aspirate

CIP-CN-CAZ-ATM-FEP-IMP-MEM

No

No

Yes

No

Yes

No

No

No

No

No

No

AC1014

09/2009

Patient

Tracheal aspirate

CIP-CN-TZP-CAZ-ATM-IMP-MEM

No

No

Yes

No

Yes

No

No

No

No

No

Yes

J028-2

12/2009

Environment

Sink

CN-TZP-ATM-IMP-MEM

No

No

Yes

No

Yes

No

No

No

No

No

No

J044-2

12/2009

Environment

Sink

TZP-ATM-IMP

Yes

No

No

No

Yes

No

No

No

No

No

No

J046-2

12/2009

Environment

Wet floor

TZP-IMP

No

No

Yes

No

Yes

No

No

No

No

No

No

J054

12/2009

Environment

ICU mop

CIP-CN-TZP-CAZ-ATM-AK-IMP-MEM

No

Yes

No

Yes

Yes

No

No

Yes

No

No

No

J087-1

12/2009

Environment

ICU squeezer

MEM

Yes

No

Yes

No

Yes

No

No

No

No

No

Yes

J096-2

12/2009

Environment

Sink

CN-TZP-CAZ-ATM-IMP-MEM

Yes

No

Yes

No

Yes

No

No

No

No

No

No

  1. Laboratory surveillance of 869 clinical specimens (blood, pus, tracheal aspirates, cerebral spinal fluid, sputum, ear swabs and urine catheter from hospitalized patients) for carbapenem resistant Pseudomonas aeruginosa and Acinetobacter species at Mulago National Referral Hospital in Kampala, 2008–2009. For comparison, 80 samples (water, disinfectants, sink-, mop, wet-floor- and squeezer swabs) from the hospital environment were studied
  2. AK, amikacin; CN, gentamicin; IMP, imipenem; MEM, meropenem; CAZ, ceftazidime; FEP, cefepime; ATM, aztreonam; TZP, piperacillin/tazobactam; CIP, ciprofloxacin; SXT, trimethoprim/sulfamethoxazole; Yes, positive; No, negative; MHT, modified Hodge test; IMP-EDTA, imipenem-EDTA double-disk synergy test