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A three-years assessment of Ixodes ricinus-borne pathogens in a French peri-urban forest

BACKGROUND: Ixodes ricinus is the predominant tick species in Europe and the primary pathogen vector for both humans and animals. These ticks are frequently involved in the transmission of Borrelia burgdorferi (sensu lato), the causative agents of Lyme borreliosis. While much more is known about I....

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Autores principales: Lejal, Emilie, Marsot, Maud, Chalvet-Monfray, Karine, Cosson, Jean-François, Moutailler, Sara, Vayssier-Taussat, Muriel, Pollet, Thomas
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6873405/
https://www.ncbi.nlm.nih.gov/pubmed/31752997
http://dx.doi.org/10.1186/s13071-019-3799-7
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author Lejal, Emilie
Marsot, Maud
Chalvet-Monfray, Karine
Cosson, Jean-François
Moutailler, Sara
Vayssier-Taussat, Muriel
Pollet, Thomas
author_facet Lejal, Emilie
Marsot, Maud
Chalvet-Monfray, Karine
Cosson, Jean-François
Moutailler, Sara
Vayssier-Taussat, Muriel
Pollet, Thomas
author_sort Lejal, Emilie
collection PubMed
description BACKGROUND: Ixodes ricinus is the predominant tick species in Europe and the primary pathogen vector for both humans and animals. These ticks are frequently involved in the transmission of Borrelia burgdorferi (sensu lato), the causative agents of Lyme borreliosis. While much more is known about I. ricinus tick-borne pathogen composition, information about temporal tick-borne pathogen patterns remain scarce. These data are crucial for predicting seasonal/annual patterns which could improve understanding and prevent tick-borne diseases. METHODS: We examined tick-borne pathogen (TBP) dynamics in I. ricinus collected monthly in a peri-urban forest over three consecutive years. In total, 998 nymphs were screened for 31 pathogenic species using high-throughput microfluidic real-time PCR. RESULTS: We detected DNA from Anaplasma phagocytophilum (5.3%), Rickettsia helvetica (4.5%), Borrelia burgdorferi (s.l.) (3.7%), Borrelia miyamotoi (1.2%), Babesia venatorum (1.5%) and Rickettsia felis (0.1%). Among all analysed ticks, 15.9% were infected by at least one of these microorganisms, and 1.3% were co-infected. Co-infections with B. afzeli/B. garinii and B. garinii/B. spielmanii were significantly over-represented. Moreover, significant variations in seasonal and/or inter-annual prevalence were observed for several pathogens (R. helvetica, B. burgdorferi (s.l.), B. miyamotoi and A. phagocytophilum). CONCLUSIONS: Analysing TBP prevalence in monthly sampled tick over three years allowed us to assess seasonal and inter-annual fluctuations of the prevalence of TBPs known to circulate in the sampled area, but also to detect less common species. All these data emphasize that sporadic tick samplings are not sufficient to determine TBP prevalence and that regular monitoring is necessary.
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spelling pubmed-68734052019-12-12 A three-years assessment of Ixodes ricinus-borne pathogens in a French peri-urban forest Lejal, Emilie Marsot, Maud Chalvet-Monfray, Karine Cosson, Jean-François Moutailler, Sara Vayssier-Taussat, Muriel Pollet, Thomas Parasit Vectors Research BACKGROUND: Ixodes ricinus is the predominant tick species in Europe and the primary pathogen vector for both humans and animals. These ticks are frequently involved in the transmission of Borrelia burgdorferi (sensu lato), the causative agents of Lyme borreliosis. While much more is known about I. ricinus tick-borne pathogen composition, information about temporal tick-borne pathogen patterns remain scarce. These data are crucial for predicting seasonal/annual patterns which could improve understanding and prevent tick-borne diseases. METHODS: We examined tick-borne pathogen (TBP) dynamics in I. ricinus collected monthly in a peri-urban forest over three consecutive years. In total, 998 nymphs were screened for 31 pathogenic species using high-throughput microfluidic real-time PCR. RESULTS: We detected DNA from Anaplasma phagocytophilum (5.3%), Rickettsia helvetica (4.5%), Borrelia burgdorferi (s.l.) (3.7%), Borrelia miyamotoi (1.2%), Babesia venatorum (1.5%) and Rickettsia felis (0.1%). Among all analysed ticks, 15.9% were infected by at least one of these microorganisms, and 1.3% were co-infected. Co-infections with B. afzeli/B. garinii and B. garinii/B. spielmanii were significantly over-represented. Moreover, significant variations in seasonal and/or inter-annual prevalence were observed for several pathogens (R. helvetica, B. burgdorferi (s.l.), B. miyamotoi and A. phagocytophilum). CONCLUSIONS: Analysing TBP prevalence in monthly sampled tick over three years allowed us to assess seasonal and inter-annual fluctuations of the prevalence of TBPs known to circulate in the sampled area, but also to detect less common species. All these data emphasize that sporadic tick samplings are not sufficient to determine TBP prevalence and that regular monitoring is necessary. BioMed Central 2019-11-21 /pmc/articles/PMC6873405/ /pubmed/31752997 http://dx.doi.org/10.1186/s13071-019-3799-7 Text en © The Author(s) 2019 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Research
Lejal, Emilie
Marsot, Maud
Chalvet-Monfray, Karine
Cosson, Jean-François
Moutailler, Sara
Vayssier-Taussat, Muriel
Pollet, Thomas
A three-years assessment of Ixodes ricinus-borne pathogens in a French peri-urban forest
title A three-years assessment of Ixodes ricinus-borne pathogens in a French peri-urban forest
title_full A three-years assessment of Ixodes ricinus-borne pathogens in a French peri-urban forest
title_fullStr A three-years assessment of Ixodes ricinus-borne pathogens in a French peri-urban forest
title_full_unstemmed A three-years assessment of Ixodes ricinus-borne pathogens in a French peri-urban forest
title_short A three-years assessment of Ixodes ricinus-borne pathogens in a French peri-urban forest
title_sort three-years assessment of ixodes ricinus-borne pathogens in a french peri-urban forest
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6873405/
https://www.ncbi.nlm.nih.gov/pubmed/31752997
http://dx.doi.org/10.1186/s13071-019-3799-7
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