Detection of Rickettsia helvetica in Ixodes ricinus ticks collected from Pyrenean chamois in France

Davoust, Bernard; Socolovschi, Cristina; Revelli, P.; Gibert, P.; Marié, Jean-Lou; Raoult, Didier; Parola, Philippe

doi:10.1016/j.ttbdis.2012.10.009

Cited by 7 publications

(8 citation statements)

References 16 publications

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“…Altogether, the prevalence rate was comparable to those that have been reported from Poland (4.4%), Slovakia (6.3%), Slovenia (4.6%), Austria (4.8%), France (6%) and Germany (6.4-7.7%) (Davoust et al, 2012;Prosenc et al, 2003;Rehacek et al, 1997;Schorn et al, 2011;Smetanova et al, 2006;Welc-Faleciak et al, 2014), and much lower than in neighboring Russia (15.1%) and Sweden (13.7%) in as well as in Switzerland (12%), Belarus (11.7%) and Denmark (13%) (Boretti et al, 2009;Movila et al, 2011;Severinsson et al, 2010;Svendsen et al, 2009;Reye et al, 2013).…”

Section: Discussionsupporting

confidence: 85%

Detection and identification of Rickettsia species in Ixodes tick populations from Estonia

Katargina

Geller

Ivanova

et al. 2015

Ticks and Tick-borne Diseases

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Section: Discussionsupporting

confidence: 85%

Detection and identification of Rickettsia species in Ixodes tick populations from Estonia

Katargina

Geller

Ivanova

et al. 2015

Ticks and Tick-borne Diseases

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“…Data are too scarce to allow valid comparison of the prevalence between geographical regions (Figure 9d). DNA of R. helvetica was found in most regions examined, suggesting a distribution throughout France (Figure 9b) (Parola et al 1998b;Davoust et al 2012;Michelet et al 2014;Moutailler et al 2016b;Bonnet et al 2017). When detected, observed prevalence was estimated between 1.1 and 14.3% in nymphs and between 1.6 and 25.0% in adults (Cotté et al 2010;Michelet et al 2014;Nebbak et al 2019;Lejal et al 2019a).…”

Section: The Genus Rickettsiamentioning

confidence: 87%

“…Females, nymphs and larvae were all observed on wild ungulates, sometimes with more adults than nymphs (e.g., roe deer, red deer, Cervus elaphus, and Pyrenean chamois, Rupicapra pyrenaica) (Davoust et al 2012;Doby et al 1994;Gilot et al 1994a). Domestic ungulates can also host numerous female ticks with up to 73 per individual on cattle (L'Hostis, Bureaud & Gorenflot 1996).…”

Section: Host Usementioning

confidence: 99%

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The distribution, phenology, host range and pathogen prevalence ofIxodes ricinusin France: a systematic map and narrative review

Perez

Bournez

Boulanger

et al. 2023

Preprint

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The tick Ixodes ricinus is the most important vector species of infectious diseases in European France. Understanding its distribution, phenology, and host species use, along with the distribution and prevalence of associated pathogens at national scales is essential for developing prevention strategies. The aim of this paper is to provide a systematic map and narrative review of the existing knowledge on the eco-epidemiology of I. ricinus in France. Using literature published up to 2020, the present paper provides a distribution map for the species and a summary of environmental factors explaining observed geographical differences in phenology and temporal differences in abundance. The diversity of vertebrate host species used by this tick, along with their degree of infestation when available, are presented and discussed with respect to their potential contribution to the population dynamics of I. ricinus and the circulation of tick-borne zoonotic pathogens. Prevalence data of detected pathogens are summarised in different maps. Results from 187 identified references show that the species is present in most departments, but scarce under Mediterranean climate and in coastal habitats. Its phenology is generally bimodal with variations depending on climate. Abundance seems positively influenced by forest cover and host abundance. Rodents and ruminants are the most studied species groups, but the diversity of sampling protocols (e.g., location, season, exhaustivity of inspection) precluded direct comparisons between species groups. Data on pathogens are patchy, with most studies conducted near research units. Among pathogens, Borrelia burgdorferi sensu lato is the most searched for in ticks and seems more prevalent in north-eastern and central France. The review carried out here has made it possible to highlight the gaps in our knowledge of tick-host-pathogen interactions, their ecology and their distribution, and the need to address these gaps in order to optimize tick and tick-borne diseases prevention and control strategies.

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“…bursa and I. ricinus were the most prevalent tick species collected from wild boars, Corsican mouflon ( Ovis gmelini musimon ) and red deer, respectively [ 32 ]. However, despite the geographical expansion of ticks in mountainous areas, knowledge on ticks in mountain ungulates and the associated vector-borne disease risks in these areas remains low [ 52 , 92 ], especially in France [ 17 , 33 ]. Yet, the recent discovery of Rickettsia monacensis in questing I. ricinus ticks in a French Pyrenees area inhabited by Pyrenean chamois ( Rupicapra pyrenaica ) [ 1 ] supports the need for a better understanding of the presence of tick species and of tick-borne pathogens in mountainous areas.…”

Section: Introductionmentioning

confidence: 99%

Prevalence of tick-borne pathogens in ticks collected from the wild mountain ungulates mouflon and chamois in 4 regions of France

Habib,

Zenner,

Garel

et al. 2024

Parasite

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Ticks are major vectors of various pathogens of health importance, such as bacteria, viruses and parasites. The problems associated with ticks and vector-borne pathogens are increasing in mountain areas, particularly in connection with global climate change. We collected ticks (n = 2,081) from chamois and mouflon in 4 mountainous areas of France. We identified 6 tick species: Ixodes ricinus, Rhipicephalus bursa, Rh. sanguineus s.l., Haemaphysalis sulcata, H. punctata and Dermacentor marginatus. We observed a strong variation in tick species composition among the study sites, linked in particular to the climate of the sites. We then analysed 791 ticks for DNA of vector-borne pathogens: Babesia/Theileria spp., Borrelia burgdorferi s.l., Anaplasma phagocytophilum, A. marginale, A. ovis, and Rickettsia of the spotted fever group (SFG). Theileria ovis was detected only in Corsica in Rh. bursa. Babesia venatorum (2 sites), Borrelia burgdorferi s.l. (B. afzelii and B. garinii; 2 sites) and Anaplasma phagocytophilum (3 sites) were detected in I. ricinus. Anaplasma ovis was detected at one site in I. ricinus and Rh. sanguineus s.l. SFG Rickettsia were detected at all the study sites: R. monacensis and R. helvetica in I. ricinus at the 3 sites where this tick is present; R. massiliae in Rh. sanguineus s.l. (1 site); and R. hoogstraalii and Candidatus R. barbariae in Rh. bursa in Corsica. These results show that there is a risk of tick-borne diseases for humans and domestic and wild animals frequenting these mountain areas.

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Detection of Rickettsia helvetica in Ixodes ricinus ticks collected from Pyrenean chamois in France

Cited by 7 publications

References 16 publications

Detection and identification of Rickettsia species in Ixodes tick populations from Estonia

Detection and identification of Rickettsia species in Ixodes tick populations from Estonia

The distribution, phenology, host range and pathogen prevalence ofIxodes ricinusin France: a systematic map and narrative review

Prevalence of tick-borne pathogens in ticks collected from the wild mountain ungulates mouflon and chamois in 4 regions of France

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