Previous Article | Next Article ![]()
Journal of Clinical Microbiology, June 2001, p. 2254-2260, Vol. 39, No. 6
Department of Bacteriology and Medical
Mycology, Istituto Superiore di Sanità, 00161 Rome,1 Division of Infectious
Diseases3 and Laboratorio di analisi
Chimico-Cliniche,2 "San Martino" Hospital,
Belluno, and Dipartimento di Scienze Biomediche, Laboratorio
delle Spirochete, Università di Trieste,
Trieste,4 Italy
Received 23 October 2000/Returned for modification 21 January
2001/Accepted 8 April 2001
Between 1993 and 1998, we isolated Borrelia
burgdorferi sensu lato from 55 of the 119 patients with
clinically diagnosed Lyme borreliosis who were admitted to "San
Martino" Hospital in Belluno, Veneto, an Adriatic region in
northeastern Italy where Lyme borreliosis is endemic. Upon
hospitalization, all patients presented erythema migrans. Isolates were
typed using ribosomal DNA PCR-restriction fragment length polymorphism
(RFLP) analysis of the rrfA-rrlB intergenic spacer. Of
the 41 isolates typed, 37 belonged to Borrelia afzelii,
2 to Borrelia garinii, and 2 to B.
burgdorferi sensu stricto. Pulsed-field gel electrophoresis,
performed on 21 strains (13 new isolates and 8 controls), revealed
different RFLP patterns within the B. garinii and
B. afzelii strains; among the five B. garinii strains and the 12 B. afzelii strains,
three or two different RFLP patterns were identified, according to the
restriction enzyme used. The protein patterns of the new isolates
confirmed their genotypic classification and revealed the level of
expression of some immunodominant proteins like OspA and other
characteristic Osps. These findings constitute the first report of such
a high recovery rate of B. burgdorferi from patients in
a very restricted area in Italy; they also indicate the predominance of
the genospecies B. afzelii in the study area and the
heterogeneity of the circulating strains.
0095-1137/01/$04.00+0 DOI: 10.1128/JCM.39.6.2254-2260.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.
Isolation and Characterization of Borrelia
burgdorferi Sensu Lato Strains in an Area of Italy Where Lyme
Borreliosis Is Endemic
*
Corresponding author. Mailing address: Dipartimento di
Scienze Biomediche, Universita' di Trieste, 34127 Trieste, Italy.
Phone: 39 040 6767178. Fax: 39 040 351668. E-mail:
cinco{at}dsbmail.units.it.
This article has been cited by other articles:
Copyright © 2009 by the American Society for Microbiology. For an alternate route to Journals.ASM.org, visit: http://intl-journals.asm.org | More Info»