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Journal of Clinical Microbiology, January 1999, p. 209-210, Vol. 37, No. 1
0095-1137/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.
Identity of Ehrlichial DNA Sequences Derived from Ixodes
ricinus Ticks with Those Obtained from Patients with Human
Granulocytic Ehrlichiosis in Slovenia
M.
Petrovec,1,*
J. W.
Sumner,2
W. L.
Nicholson,2
J. E.
Childs,2
F.
Strle,3
J.
Barli
,1
S.
Lotri
-Furlan,1 and
T.
Av
i
upanc1
Institute of Microbiology and Immunology,
Medical Faculty, University of Ljubljana,1 and
Department of Infectious Diseases, University Medical
Center,3 Ljubljana, Slovenia, and
Viral
and Rickettsial Zoonoses Branch, Centers for Disease Control and
Prevention, Atlanta, Georgia2
Received 25 June 1998/Returned for modification 7 August
1998/Accepted 2 October 1998
Adult Ixodes ricinus (Acari: Ixodidae) ticks collected
near Ljubljana, Slovenia, were tested for the agent of human
granulocytic ehrlichiosis (HGE) by using PCR assays based on the 16S
rRNA gene. Three (3.2%) of 93 ticks were found to contain granulocytic
ehrlichiae. Nucleotide sequences of portions of the bacterial
groESL heat shock operon amplified from these ticks were
identical or nearly (99.8%) identical to those previously determined
for human patients with HGE from Slovenia, providing additional
evidence that the ticks were infected with the HGE agent. This study
identified I. ricinus as the likely vector for these
ehrlichial pathogens of humans in this part of Europe.
*
Corresponding author. Mailing address: Institute of
Microbiology and Immunology, Zalo
ka 4, 1105 Ljubljana, Slovenia.
Phone: 386 61 316 593. Fax: 386 61 302 895. E-mail:
petrovec{at}mf.uni-lj.si.
Journal of Clinical Microbiology, January 1999, p. 209-210, Vol. 37, No. 1
0095-1137/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.
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