Prevalence of Tick-Borne Pathogens in Adult<i>Dermacentor</i>spp. Ticks from Nine Collection Sites in France

Bonnet, Sarah; Fuente, José de la; Nicollet, Philippe; Liu, X.; Madani, Nora; Blanchard, B.; Maingourd, C.; Alongi, Angelina; Torina, Alessandra; Mera, Isabel G. Fernández de; Vicente, Joaquı́n; George, Jean-Claude; Vayssier‐Taussat, Muriel; Joncour, Guy

doi:10.1089/vbz.2011.0933

Cited by 105 publications

(91 citation statements)

References 72 publications

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“…burgdorferi s.l. had an overall low prevalence (0.8%), similar to some rates previously reported in France, which can varied from 0 to 29% [17,51,53,54]. The absence of Babesia sp.…”

Section: Discussionsupporting

confidence: 81%

First identification of Rickettsia helvetica in questing ticks from a French Northern Brittany Forest

et al. 2017

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Tick-borne rickettsiae are considered to be emerging, but data about their presence in western Europe are scarce. Ixodes ricinus ticks, the most abundant and widespread tick species in western Europe, were collected and tested for the presence of several tick-borne pathogens in western France, a region never previously explored in this context. There was a high tick abundance with a mean of 4 females, 4.5 males, and 23.3 nymphs collected per hour per collector. Out of 622 tested ticks, specific PCR amplification showed the presence of tick symbionts as well as low prevalence of Borrelia burgdorferi (0.8%), Bartonella spp. (0.17%), and Anaplasma phagocytophilum (0.09%). The most prevalent pathogen was Rickettsia helvetica (4.17%). This is the first time that this bacteria has been detected in ticks in this region, and this result raises the possibility that bacteria other than those classically implicated may be involved in rickettsial diseases in western France.

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“…burgdorferi s.l. had an overall low prevalence (0.8%), similar to some rates previously reported in France, which can varied from 0 to 29% [17,51,53,54]. The absence of Babesia sp.…”

Section: Discussionsupporting

confidence: 81%

First identification of Rickettsia helvetica in questing ticks from a French Northern Brittany Forest

et al. 2017

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“…decoloratus in Kenya. 18 Similarly, C. burnetii has recently been detected in different species of ixodid ticks in France, 34,37 Italy, 38 Spain, 39 Germany, 40 Australia, 41 Argentina, 42 Slovakia and Hungary, 43 Japan, 44 and in eight species of ticks in China. 45 The finding of significantly higher C. burnetii in both Am.…”

Section: Discussionmentioning

confidence: 97%

Occurrence and Genotyping of Coxiella burnetii in Ixodid Ticks in Oromia, Ethiopia

Kumsa¹,

Socolovschi²,

Almeras³

et al. 2015

The American Society of Tropical Medicine and Hygiene

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Abstract. This study was conducted from September 2011 to March 2014 to address the occurrence and genotypes of Coxiella burnetii using molecular methods in ticks collected from domestic animals in Ethiopia. Ticks were tested for C. burnetii by quantitative real-time polymerase chain reaction (qPCR) targeting two different genes followed by multispacer sequence typing (MST). An overall prevalence of 6.4% (54/842) of C. burnetii was recorded. C. burnetii was detected in 28.6% (14/49) of Amblyomma gemma, 25% (31/124) of Rhipicephalus pulchellus, 7.1% (1/14) of Hyalomma marginatum rufipes, 3.2% (2/62) of Am. variegatum, 3.1% (4/128) of Am. cohaerens, 1.6% (1/63) of Rh. praetextatus, and 0.6% (1/153) of Rhipicephalus (Boophilus) decoloratus. Significantly higher overall frequencies of C. burnetii DNA were observed in Am. gemma and Rh. pulchellus than in other tick species (Mantel-Haenszel [MH], P 0.0001). The overall frequency of C. burnetii was significantly higher (MH, P 0.0001) in ticks from southeastern districts (Arero, Moyale, and Yabelo) than that from other districts. This study demonstrated the presence of C. burnetii genotype MST 18 in ticks in southeastern districts and genotype MST 20 in ticks in central districts. This study highlights the importance of ticks in the epidemiology of C. burnetii in Ethiopia.

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“…However, in Spain, Hy. m. marginatum has been identified as a potential biological vector for A. marginale [43]. These ticks are also the vectors of Babesia caballi , causing babesiosis in horses and Theileria annulata infection under laboratory conditions [26].…”

Section: Discussionmentioning

confidence: 99%

Molecular investigation and phylogeny of Anaplasmataceae species infecting domestic animals and ticks in Corsica, France

et al. 2017

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BackgroundsCorsica is a French island situated in the Mediterranean Sea. The island provides suitable natural conditions to study disease ecology, especially tick-borne diseases and emerging diseases in animals and ticks. The family Anaplasmataceae is a member of the order Rickettsiales; it includes the genera Anaplasma, Ehrlichia, Neorickettsia and Wolbachia. Anaplasmosis and ehrlichiosis traditionally refer to diseases caused by obligate intracellular bacteria of the genera Anaplasma and Ehrlichia. The aim of this study was to identify and estimate the prevalence of Anaplasmataceae species infecting domestic animals and ticks in Corsica.MethodsIn this study, 458 blood samples from sheep, cattle, horses, goats, dogs, and 123 ticks removed from cattle, were collected in Corsica. Quantitative real-time PCR screening and genetic characterisation of Anaplasmataceae bacteria were based on the 23S rRNA, rpoB and groEl genes.ResultsTwo tick species were collected in the present study: Rhipicephalus bursa (118) and Hyalomma marginatum marginatum (5). Molecular investigation showed that 32.1% (147/458) of blood samples were positive for Anaplasmataceae infection. Anaplasma ovis was identified in 42.3% (93/220) of sheep. Anaplasma marginale was amplified from 100% (12/12) of cattle and two R. bursa (2/123). Several potentially new species were also identified: Anaplasma cf. ovis, “Candidatus Anaplasma corsicanum”, “Candidatus Anaplasma mediterraneum” were amplified from 17.3% (38/220) of sheep, and Anaplasma sp. marginale-like was amplified from 80% (4/5) of goats. Finally, one R. bursa tick was found to harbour the DNA of E. canis. All samples from horses and dogs were negative for Anaplasmataceae infection.ConclusionsTo our knowledge, this study is the first epidemiological survey on Anaplasmataceae species infecting animals and ticks in Corsica and contributes toward the identification of current Anaplasmataceae species circulating in Corsica.

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Prevalence of Tick-Borne Pathogens in AdultDermacentorspp. Ticks from Nine Collection Sites in France

Cited by 105 publications

References 72 publications

First identification of Rickettsia helvetica in questing ticks from a French Northern Brittany Forest

First identification of Rickettsia helvetica in questing ticks from a French Northern Brittany Forest

Occurrence and Genotyping of Coxiella burnetii in Ixodid Ticks in Oromia, Ethiopia

Molecular investigation and phylogeny of Anaplasmataceae species infecting domestic animals and ticks in Corsica, France

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