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Journal of Clinical Microbiology, January 2003, p. 463-466, Vol. 41, No. 1
0095-1137/03/$08.00+0     DOI: 10.1128/JCM.41.1.463-466.2003
Copyright © 2003, American Society for Microbiology. All Rights Reserved.

Epidemiology and Antimicrobial Susceptibilities of 111 Campylobacter fetus subsp. fetus Strains Isolated in Québec, Canada, from 1983 to 2000

Carole Tremblay,1,{dagger} Christiane Gaudreau,1* and Manon Lorange2

Département de Microbiologie et Infectiologie, Hôpital St-Luc du Centre Hospitalier de l'Université de Montréal, Montréal,1 Laboratoire de Santé Publique du Québec, Sainte-Anne de Bellevue, Québec, Canada2

Received 22 March 2002/ Returned for modification 23 September 2002/ Accepted 16 October 2002

The epidemiology and antimicrobial susceptibilities of 111 Campylobacter fetus subsp. fetus strains isolated from 103 patients from 1983 to 2000 in Québec, Canada, were determined. The median number of patients infected annually with this bacteria was seven, with an incidence of 0.1 per 100,000 population. The male-to-female ratio was 1.1 to 1.0. The patients originated from 13 of the 18 Québec socioeconomic regions. The age range of the patients was 6 months to 90 years old, 53% being >=70 years old and 2% being <20 years old. The isolation site was blood for 69% of the patients, stools for 20%, and other body fluids for 11% of them. Three patients suffered a relapse, with the same strain being isolated from the same site at different times as confirmed by pulse-field gel electrophoresis. All isolates were susceptible to ampicillin, gentamicin, meropenem, and imipenem, with 90% minimal inhibitory concentrations of 4, 1, 0.12, and <=0.06 µg/ml, respectively. Three percent and two percent of the strains were, respectively, resistant and intermediate to ciprofloxacin. Thirty-four percent of the strains were resistant to tetracycline. There was a nonsignificant increase in resistance to ciprofloxacin (P = 0.27) and to tetracycline (P = 0.65) in recent years. The percentages of intermediate and resistant MICs were, respectively, 12 and 1% for cefotaxime and 71 and 0% for erythromycin. All strains were ß-lactamase negative.

* Corresponding author. Mailing address: Département de Microbiologie Médicale et Infectiologie, Hôpital Saint-Luc du CHUM, 1058 Rue Saint-Denis, Montréal (Québec), Canada H2X 3J4. Phone: (514) 890-8305, ext. 36209. Fax: (514) 412-7311. E-mail: christiane.gaudreau.chum{at}ssss.gouv.qc.ca.

{dagger} Present address: Service de Microbiologie et Infectiologie, Hôtel-Dieu de St-Jérôme, St-Jérôme, Québec, Canada.

Journal of Clinical Microbiology, January 2003, p. 463-466, Vol. 41, No. 1
0095-1137/03/$08.00+0     DOI: 10.1128/JCM.41.1.463-466.2003
Copyright © 2003, American Society for Microbiology. All Rights Reserved.



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