Department of Pathology-Microbiology, Faculty of Medicine,
University of Jordan, Amman, Jordan.
ashehabi@ju.edu.jo
Pseudomonas aeruginosa was isolated in low rates from stool
specimens of outpatients and inpatients (7% versus 12%) but in
higher rates from chlorinated and nonchlorinated water sources
(15% versus 44%), respectively in Jordan. The same biotype was
recognized among 90% of P. aeruginosa isolates from patient's
stools and water sources using specific biochemical profiles.
Three serogroups belonging to 01, 06 and 011 accounted for the
majority of these isolates in water (66%) and stools (78%),
respectively. All P. aeruginosa isolates from water were highly
susceptible (87%-100%) to piperacillin-tazobactam, amikacin,
gentamicin, imipenem, aztreonam, ceftazidime and ciprofloxacin,
whereas the isolates from stool were slightly less susceptible
(81%-98%) to these antimicrobials. P. aeruginosa isolates from
water and stool sources were almost equally highly resistant to
tetracycline (86%-89%) and carbenicillin (88%-89%),
respectively. One common small plasmid (15.4 kb) was detected in
14/25 (56%) of multidrug-resistant P. aeruginosa isolates from
both water and stool. This study demonstrates certain common
epidemiological characteristics including antimicrobial
resistance pattern, biotypes and serotypes among P. aeruginosa
isolates from patient's stools and drinking water sources in
Jordan.
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