First Molecular Detection of <i>R. conorii, R. aeschlimannii</i>, and <i>R. massiliae</i> in Ticks from Algeria

Bitam, Idir; Parola, Philippe; Matsumoto, Koutaro; Rolain, Jean‐Marc; Baziz, Belkacem; Boubidi, S. C.; Harrat, Zoubir; Belkaid, M; Raoult, Didier

doi:10.1196/annals.1374.073

Cited by 68 publications

(46 citation statements)

References 9 publications

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“…In our study, species-specific probes showed that 34% of DNA samples from R. sanguineus ticks, collected from dogs in the Sfax governorate, contained DNA corresponding to R. conorii. In Algeria, a neighboring country, Bitam et al reported an infection rate of 26% for this bacterium in R. sanguineus ticks (25), which is higher than those reported in northern Mediterranean regions such as Bulgaria, Turkey, and Albania (1.4%) (26).…”

Section: Discussionmentioning

confidence: 73%

“…Indeed, this is the first report of R. massiliae Bar 29 isolated from R. sanguineus in North Africa. However, R. massiliae was detected in R. sanguineus in Morocco with a prevalence of 4.7% (20) and in Algeria (25). This species, which appears to occur in many countries, was detected in R. sanguineus and Rhipicephalus turanicus collected in Italy, France, Greece, Spain, and Israel (32).…”

Section: Discussionmentioning

confidence: 99%

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Detection of Rickettsia in Rhipicephalus sanguineus Ticks and Ctenocephalides felis Fleas from Southeastern Tunisia by Reverse Line Blot Assay

et al. 2014

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Ticks (n ‫؍‬ 663) and fleas (n ‫؍‬ 470) collected from domestic animals from southeastern Tunisia were screened for Rickettsia infection using reverse line blot assay. Evidence of spotted fever group Rickettsia was obtained. We detected Rickettsia felis in fleas, Rickettsia massiliae Bar 29 and the Rickettsia conorii Israeli spotted fever strain in ticks, and Rickettsia conorii subsp. conorii and Rickettsia spp. in both arthropods. The sensitivity of the adopted technique allowed the identification of a new association between fleas and R. conorii subsp. conorii species. The presence of these vector-borne Rickettsia infections should be considered when diagnosing this disease in humans in Tunisia.

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Section: Discussionmentioning

confidence: 73%

Section: Discussionmentioning

confidence: 99%

Detection of Rickettsia in Rhipicephalus sanguineus Ticks and Ctenocephalides felis Fleas from Southeastern Tunisia by Reverse Line Blot Assay

et al. 2014

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“…In addition, hedgehogs were suggested to be a potential reservoir for R. conorii subsp. conorii (212). However, the animal reservoir of R. conorii subsp.…”

Section: Tick-borne Rickettsiae In Europe Species Identified As Pathomentioning

confidence: 99%

Update on Tick-Borne Rickettsioses around the World: a Geographic Approach

et al. 2013

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SUMMARY Tick-borne rickettsioses are caused by obligate intracellular bacteria belonging to the spotted fever group of the genus Rickettsia . These zoonoses are among the oldest known vector-borne diseases. However, in the past 25 years, the scope and importance of the recognized tick-associated rickettsial pathogens have increased dramatically, making this complex of diseases an ideal paradigm for the understanding of emerging and reemerging infections. Several species of tick-borne rickettsiae that were considered nonpathogenic for decades are now associated with human infections, and novel Rickettsia species of undetermined pathogenicity continue to be detected in or isolated from ticks around the world. This remarkable expansion of information has been driven largely by the use of molecular techniques that have facilitated the identification of novel and previously recognized rickettsiae in ticks. New approaches, such as swabbing of eschars to obtain material to be tested by PCR, have emerged in recent years and have played a role in describing emerging tick-borne rickettsioses. Here, we present the current knowledge on tick-borne rickettsiae and rickettsioses using a geographic approach toward the epidemiology of these diseases.

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“…7 The distribution of R. massiliae and its association with different Rhipicephalus spp. was subsequently extended to other Mediterranean and African countries, [8][9][10][11][12][13][14][15][16][17] and to Argentina. 18 The reported prevalence of R. massiliae in ticks has varied from 4.7% to 18%.…”

Section: Introductionmentioning

confidence: 99%

A Focus of Dogs and Rickettsia massiliae–Infected Rhipicephalus sanguineus in California

Beeler¹,

Abramowicz²,

Zambrano³

et al. 2011

The American Society of Tropical Medicine and Hygiene

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Abstract. A recurrent focus of Rhipicephalus sanguineus infestation was investigated in a suburban area of southern California after reports of suspected Rocky Mountain spotted fever in two dogs on the same property. Abundant quantities of Rh. sanguineus were collected on the property and repeatedly from each dog, and Rickettsia massiliae DNA was detected by polymerase chain reaction (PCR). Whole blood and serum samples from four dogs were tested by using PCR and microimmunofluorescent assay for antibodies against spotted fever group rickettsiae. Serum samples from all four dogs contained antibodies reactive with R. massiliae , R. rhipicephali , R. rickettsii , and 364D Rickettsia but no rickettsial DNA was detected by PCR of blood samples. Serum cross-absorption and Western blot assays implicated R. massiliae as the most likely spotted fever group rickettsiae responsible for seropositivity. To our knowledge, this is the first detection of R. massiliae in ticks in California.

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First Molecular Detection of R. conorii, R. aeschlimannii, and R. massiliae in Ticks from Algeria

Cited by 68 publications

References 9 publications

Detection of Rickettsia in Rhipicephalus sanguineus Ticks and Ctenocephalides felis Fleas from Southeastern Tunisia by Reverse Line Blot Assay

Detection of Rickettsia in Rhipicephalus sanguineus Ticks and Ctenocephalides felis Fleas from Southeastern Tunisia by Reverse Line Blot Assay

Update on Tick-Borne Rickettsioses around the World: a Geographic Approach

A Focus of Dogs and Rickettsia massiliae–Infected Rhipicephalus sanguineus in California

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