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Antimicrobial Agents and Chemotherapy, May 2002, p. 1604-1606, Vol. 46, No. 5
0066-4804/02/$04.00+0     DOI: 10.1128/AAC.46.5.1604-1606.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.

Characterization of a Laboratory-Derived, High-Level Ampicillin-Resistant Salmonella enterica Serovar Typhimurium Strain That Caused Meningitis in an Infant

Cheng-Hsun Chiu,1 Chishih Chu,2* Lin-Hui Su,3 Wan-Yu Wu,2 and Tsu-Lan Wu3

Department of Pediatrics, Chang Gung Children's Hospital,1 Department of Microbiology and Immunology, Chang Gung University College of Medicine,2 Department of Clinical Pathology, Chang Gung Memorial Hospital, Kweishan 333, Taoyuan, Taiwan3

Received 16 July 2001/ Returned for modification 12 November 2001/ Accepted 11 February 2002

A Salmonella enterica serovar Typhimurium strain that harbored a plasmid carrying a TEM-1-type ß-lactamase gene was isolated from the blood and cerebrospinal fluid of an infant with meningitis. This 3.2-kb plasmid was further characterized to be a nonconjugative pGEM series cloning vector containing a foreign insert. The strain was likely laboratory derived and contaminated the environment before it caused the infection.

* Corresponding author. Mailing address: Department of Microbiology and Immunology, Chang Gung University College of Medicine, 259 Wenhua 1 Road, Kweishan 333, Taoyuan, Taiwan. Phone: 886-3-3281200, ext. 8202. Fax: 886-3-3288957. E-mail: chchiu{at}adm.cgmh.org.tw.

Antimicrobial Agents and Chemotherapy, May 2002, p. 1604-1606, Vol. 46, No. 5
0066-4804/02/$04.00+0     DOI: 10.1128/AAC.46.5.1604-1606.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.





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