The dog factor in brown dog tick Rhipicephalus sanguineus (Acari:Ixodidae) infestations in and near human dwellings

Uspensky, İgor; Ioffe-uspensky, Inna

doi:10.1016/s1438-4221(02)80030-3

Cited by 48 publications

(25 citation statements)

References 12 publications

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“…Em cães criados em áreas rurais ou suburbanas, onde vivem soltos e tem acesso livre às matas e a outros ambientes, onde várias espécies de animais silvestres e domésticos estão presentes, a infestação se dá por diferentes espécies de carrapatos nativos, pertencentes ao gênero Amblyomma e também por B. microplus PEREIRA, 2001;LABRUNA et al, 2001). Distribuição similar de carrapatos foi encontrada com populações urbanas de cães de rua nas regiões de Londrina, PR (YAMAMURA; VIDOTTO, 1982), Porto Alegre, RS (RIBEIRO et al,1997) e Belo Horizonte, MG (LINARDI;NAGEM, 1973).…”

Section: Resultsunclassified

Caracterização de carrapatos parasitas de cães em uma população hospitalar no norte do Paraná

Oyafuso¹,

Dagnone

Vidotto

et al. 2002

Sem. Ci. Agr.

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Section: Resultsunclassified

Caracterização de carrapatos parasitas de cães em uma população hospitalar no norte do Paraná

Oyafuso¹,

Dagnone

Vidotto

et al. 2002

Sem. Ci. Agr.

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“…Of the 55 ticks received, 42% were adults and 58% were immatures, including 13 R. sanguineus nymphs removed at one time from a 2-year-old boy. Unlike other anthropophilic ticks in the U. S., R. sanguineus is adapted to survive and reproduce in dry indoor environments (Uspensky andIoffe-Uspensky 2002, Yoder at al. 2006).…”

Section: Discussionmentioning

confidence: 99%

Infrequency ofRickettsia rickettsiiinDermacentor variabilisRemoved from Humans, with Comments on the Role of Other Human-Biting Ticks Associated with Spotted Fever Group Rickettsiae in the United States

Stromdahl

Jiang

Vince

et al. 2011

Vector-Borne and Zoonotic Diseases

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From 1997 to 2009, the Tick-Borne Disease Laboratory of the U.S. Army Public Health Command (USAPHC) (formerly the U.S. Army Center for Health Promotion and Preventive Medicine) screened 5286 Dermacentor variabilis ticks removed from Department of Defense (DOD) personnel, their dependents, and DOD civilian personnel for spotted fever group rickettsiae using polymerase chain reaction and restriction fragment length polymorphism analysis. Rickettsia montanensis (171/5286 = 3.2%) and Rickettsia amblyommii (7/5286 = 0.1%) were detected in a small number of samples, but no ticks were found positive for Rickettsia rickettsii, the agent of Rocky Mountain spotted fever (RMSF) until May 2009, when it was detected in one D. variabilis male removed from a child in Maryland. This result was confirmed by nucleotide sequence analysis of the rickettsial isolate and of the positive control used in the polymerase chain reaction, which was different from the isolate. Lethal effects of rickettsiostatic proteins of D. variabilis on R. rickettsii and lethal effects of R. rickettsii infection on tick hosts may account for this extremely low prevalence. Recent reports of R. rickettsii in species Rhipicephalus sanguineus and Amblyomma americanum ticks suggest their involvement in transmission of RMSF, and other pathogenic rickettsiae have been detected in Amblyomma maculatum. The areas of the U.S. endemic for RMSF are also those where D. variabilis exist in sympatry with populations of A. americanum and A. maculatum. Interactions among the sympatric species of ticks may be involved in the development of a focus of RMSF transmission. On the other hand, the overlap of foci of RMSF cases and areas of A. americanum and A. maculatum populations might indicate the misdiagnosis as RMSF of diseases actually caused by other rickettsiae vectored by these ticks. Further studies on tick vectors are needed to elucidate the etiology of RMSF.

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“…sanguineus may establish persistent infestations in the environment and also can penetrate inside houses. 47,48 Common steps for prevention of most Ixodid tick exposures, which include avoiding tick-infested areas and wearing protective clothing, are not sufficient for addressing nidicolous Rh. sanguineus infestations.…”

Section: Discussionmentioning

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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The dog factor in brown dog tick Rhipicephalus sanguineus (Acari:Ixodidae) infestations in and near human dwellings

Cited by 48 publications

References 12 publications

Caracterização de carrapatos parasitas de cães em uma população hospitalar no norte do Paraná

Caracterização de carrapatos parasitas de cães em uma população hospitalar no norte do Paraná

Infrequency ofRickettsia rickettsiiinDermacentor variabilisRemoved from Humans, with Comments on the Role of Other Human-Biting Ticks Associated with Spotted Fever Group Rickettsiae in the United States

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

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