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ijs-12149
Serological relatedness among clinical and environmental Acinetobacter baumannii isolates isolated from hospitals in Baghdad
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During 2011, 1900 clinical specimens (urine, wounds, burns, blood and sputum) and
240 hospital environment specimens were collected from four hospitals in
Baghdad/Medical city including: Baghdad Teaching Hospital, The Martyr Gazi Al-
Hariry Hospital, Welfare Teaching Hospital and The Burn Specialist Hospital. All
specimens were cultured and 128 Acinetobacter baumannii were obtained from
clinical and environmental specimens in a ratio of 6.05% (n=115) and 5.42%
(n=13), respectively. These isolates were identified using microscopic examination,
biochemical tests and Api 20 E system.The slide agglutination technique for rabbit
immune sera and A. baumannii bacteria was used and our data analysis revealed a
serological relatedness among the isolates. We found 22 different serotypes for 128
clinical and environmental A. baumannii isolates. The most common serotype was
serotype 1 which included 34 isolates (26.56%) and there were 40 (31.25%)
miscellaneous isolates which isolated from different specimens, departments and
hospitals. Notably, they didn’t arrange within any of the 22 serotypes. Upon such
findings we may conclude, there is a wide variation in serological characteristics of
the locally isolated A. baumannii.

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