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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
medicine
Detection and identification of Ehrlichia spp. in ticks collected in Tunisia and Morocco
Journal of Clinical Microbiology, Volume 43, No. 3, Year 2005
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Description
A broad-range 16S rRNA gene PCR assay followed by partial sequencing of the 16S rRNA gene was used for the detection of members of the family Anaplasmataceae in ticks in North Africa. A total of 418 questing Ixodes ricinus ticks collected in Tunisia and Morocco, as well as 188 Rhipicephalus ticks from dogs and 52 Hyalomma ticks from bovines in Tunisia, were included in this study. Of 324 adult I. ricinus ticks, 16.3% were positive for Ehrlichia spp., whereas only 3.4 and 2.8% of nymphs and larvae, respectively, were positive. A large heterogeneity was observed in the nucleotide sequences. Partial sequences identical to that of the agent of human granulocytic ehrlichiosis (HGE) were detected in I. ricinus and Hyalomma detritum, whereas partial sequences identical to that of Anaplasma platys were detected in Rhipicephalus sanguineus. However, variants of Anaplasma, provisionally designated Anaplasma-like, were predominant in the I. ricinus tick population in Maghreb. Otherwise, two variants of the genus Ehrlichia were detected in I. ricinus and H. detritum. Surprisingly, a variant of Wolbachia pipientis was evidenced from I. ricinus in Morocco. These results emphasized the potential risk of tick bites for human and animal populations in North Africa. Copyright © 2005, American Society for Microbiology. All Rights Reserved.
Authors & Co-Authors
Sarin, M'Hammed
Morocco, Casablanca
Institut Pasteur du Maroc
M'Ghirbi, Youmna
Tunisia, Tunis
Institut Pasteur de Tunis
Bouattour, Ali
Tunisia, Tunis
Institut Pasteur de Tunis
Gern, Lise E.
Switzerland, Neuchatel
Universite de Neuchatel, Institut de Zoologie
Baranton, Guy
France, Paris
Institut Pasteur, Paris
Postic, Danielle
France, Paris
Institut Pasteur, Paris
Statistics
Citations: 89
Authors: 6
Affiliations: 4
Identifiers
Doi:
10.1128/JCM.43.3.1127-1132.2005
ISSN:
00951137
Research Areas
Genetics And Genomics
Study Design
Cross Sectional Study
Study Locations
Multi-countries
Morocco
Tunisia