Detection of Borrelia and Ehrlichia in Rhipicephalus sanguineus

Rhipicephalus sanguineus, the brown dog tick, is endemic throughout the world wherever domestic dogs are present. It has been recently reported by some veterinarians in the city of Laredo, Texas, USA, that Lyme disease, the most common tick-borne disease in the Northern United States, is present in local domestic dogs. Fully engorged R. sanguineus ticks were collected and their DNA was purified. The ticks were screened to determine the prevalence of Borrelia, Rickettsia and Ehrlichiaspecies. Sequences related to Borrelia burgdorferiin 9.8% (n=11/112), “Candidatus Borrelia lonestari” in 16.9% (n=19/112) and Ehrlichia canis in 12.5% (n=14/112) were detected by PCR. Sequencing has confirmed the presence of DNA from Ehrlichia canisand “Candidatus B. lonestari”, corroborating that Borrelia and Ehrlichia are present in domestic dogs in South Texas.

Download Full-text

A brown dog tick (Rhipicephalus sanguineus) bite at sea

Journal of The Royal Naval Medical Service ◽

10.1136/jrnms-101-188 ◽

2015 ◽

Vol 101 (2) ◽

pp. 188-191

Author(s):

E Stachow

Keyword(s):

Best Practice ◽

Rhipicephalus Sanguineus ◽

Tick Bites ◽

Fatal Disease ◽

Vector Borne Diseases ◽

Brown Dog Tick ◽

Tick Borne Disease ◽

Vector Borne ◽

Dog Tick ◽

Maritime Environment

AbstractMedical Officers (MOs) and Medical Branch Ratings (MBRs) must maintain an awareness of the risk of vector-borne diseases among deployed personnel.Personnel working in the maritime environment may not expect to be at risk of tick bites, as ticks typically occupy habitats with dense vegetation such as forests or scrub land. However, tick-borne pathogens can cause serious and sometimes fatal disease, and therefore the risk of tick bites and associated diseases should be recognised.We present a case of a tick bite in a member of a ship’s company eight days after leaving port. The tick was identified as a brown dog tick (Rhipicephalus sanguineus), a species known to thrive indoors. We describe several important tick-borne diseases which can be transmitted by R. sanguineus and explore best practice for tick removal and aftercare. Finally, we outline the appropriate management of suspected tick-borne disease in deployed personnel in the maritime environment.

Download Full-text

Brown Dog Tick, Rhipicephalus sanguineus Latreille (Arachnida: Acari: Ixodidae)

EDIS ◽

10.32473/edis-in378-2001 ◽

1969 ◽

Vol 2004 (5) ◽

Author(s):

Cynthia C. Lord

Keyword(s):

Life Cycle ◽

Rhipicephalus Sanguineus ◽

Cooperative Extension Service ◽

University Of Florida ◽

Entire Life ◽

Entire Life Cycle ◽

Brown Dog Tick ◽

The Us ◽

The World ◽

Dog Tick

The brown dog tick, Rhipicephalus sanguineus Latreille, is unusual among ticks, in that it can complete its entire life cycle indoors. Because of this, it can establish populations in colder climates, and has been found in much of the world. Many tick species can be carried indoors on animals, but cannot complete their entire life cycle inside. Although R. sanguineus will feed on a wide variety of mammals, dogs are the preferred host in the US and appear to be required to develop large infestations. This document is EENY-221, one of a series of Featured Creatures from the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: July 2001. EENY-221/IN378: Brown Dog Tick, Rhipicephalus sanguineus Latreille (Arachnida: Acari: Ixodidae) (ufl.edu)

Download Full-text

Rhipicephalus sanguineus (Acari: Ixodidae), the brown dog tick, parasitizing humans in Brazil

Revista da Sociedade Brasileira de Medicina Tropical ◽

10.1590/s0037-86822006000100012 ◽

2006 ◽

Vol 39 (1) ◽

pp. 64-67 ◽

Cited By ~ 90

Author(s):

Filipe Dantas-Torres ◽

Luciana Aguiar Figueredo ◽

Sinval Pinto Brandão-Filho

Keyword(s):

Tick Species ◽

Rhipicephalus Sanguineus ◽

Domestic Dogs ◽

Metropolitan Region ◽

Brown Dog Tick ◽

Dog Owners ◽

Dog Tick

The objective of this paper is to describe four cases of human parasitism by Rhipicephalus sanguineus (Latrielle) in Brazil. During an investigation regarding the species of ectoparasites of domestic dogs from the metropolitan region of Recife, Pernambuco state, four dog owners were found to be parasitized by ticks. The ticks were collected from these individuals and their dogs. All the ticks were identified as Rhipicephalus sanguineus . These are, to our knowledge, the first four cases of human parasitism by this tick species in Brazil. The possible implications of this finding are discussed here.

Download Full-text

Identification of Ticks in Dogs with Ehrlichiosis

Pests, Weeds and Diseases in Agricultural Crop and Animal Husbandry Production ◽

10.5772/intechopen.92244 ◽

2020 ◽

Author(s):

Koperumselvan Karthika

Keyword(s):

Blood Meal ◽

Rhipicephalus Sanguineus ◽

Salivary Secretion ◽

Etiologic Agent ◽

Blood Transfusions ◽

Feeding Site ◽

Brown Dog Tick ◽

Canine Monocytic Ehrlichiosis ◽

Tick Borne Disease ◽

Dog Tick

Examination of ticks collected from ehrlichiosis positive dogs revealed the occurrence of Rhipicephalus sanguineus. The distribution of ehrlichiosis in dogs is related to the spreading of vectors. Ehrlichia canis is the etiologic agent of canine monocytic ehrlichiosis (CME) and recognized as the most prevalent tick-borne disease affecting dogs and is transmitted by the brown dog tick Rhipicephalus sanguineus with an expanding global distribution. Infection of the vertebrate host occurred when an infected tick ingested a blood meal which in turn contaminated the feeding site with its salivary secretion. Blood transfusions from infected donors can also transmit the organisms. Hence, identification of ticks is necessary to detect the disease affecting dogs.

Download Full-text

Host location cues of the brown dog tick,Rhipicephalus sanguineus

10.1603/ice.2016.94046 ◽

2016 ◽

Author(s):

Emma N. I. Weeks

Keyword(s):

Host Location ◽

Rhipicephalus Sanguineus ◽

Brown Dog Tick ◽

Dog Tick

Download Full-text

Bringing the Real World of Science to Children: A Partnership of the American Museum of Natural History and the City University of New York

Online Learning ◽

10.24059/olj.v12i1.43 ◽

2008 ◽

Vol 12 (1) ◽

Cited By ~ 1

Author(s):

Anthony G Picciano ◽

Robert V. Steiner

Keyword(s):

United States ◽

New York ◽

Natural History ◽

Local Governments ◽

Compulsory Education ◽

Development Program ◽

The United States ◽

American Museum ◽

The World ◽

The City

Every child has a right to an education. In the United States, the issue is not necessarily about access to a school but access to a quality education. With strict compulsory education laws, more than 50 million students enrolled in primary and secondary schools, and billions of dollars spent annually on public and private education, American children surely have access to buildings and classrooms. However, because of a complex and competitive system of shared policymaking among national, state, and local governments, not all schools are created equal nor are equal education opportunities available for the poor, minorities, and underprivileged. One manifestation of this inequity is the lack of qualified teachers in many urban and rural schools to teach certain subjects such as science, mathematics, and technology. The purpose of this article is to describe a partnership model between two major institutions (The American Museum of Natural History and The City University of New York) and the program designed to improve the way teachers are trained and children are taught and introduced to the world of science. These two institutions have partnered on various projects over the years to expand educational opportunity especially in the teaching of science. One of the more successful projects is Seminars on Science (SoS), an online teacher education and professional development program, that connects teachers across the United States and around the world to cutting-edge research and provides them with powerful classroom resources. This article provides the institutional perspectives, the challenges and the strategies that fostered this partnership.

Download Full-text

Investigation of Tickborne Pathogens within Naturally Infected Brown Dog Tick (Ixodidae: Rhipicephalus Sanguineus) in Egypt by Light and Electron Microscopy

International Journal of Veterinary Science ◽

10.37422/ijvs/20.064 ◽

2020 ◽

Keyword(s):

Electron Microscopy ◽

Salivary Gland ◽

Light And Electron Microscopy ◽

Rhipicephalus Sanguineus ◽

Mammalian Host ◽

Babesia Canis ◽

Brown Dog Tick ◽

Transmission Electron ◽

Dog Tick ◽

Theileria Spp

Tick borne pathogens present a significant health challenge to animals and human because a single tick may transmit multiple pathogens to a mammalian host during feeding. The present study detected tick-borne pathogens from pet dogs. A total of 666 ticks were collected from 144 pet and sheltered dogs in Egypt from April to September 2018. For hemolymph, midgut and salivary gland smears 546 ticks were used as well as 360 egg smears from 120 female tick were examined by light microscope. The infected ticks were prepared for transmission electron microscopy (TEM). Ticks were identified; Rhipicephalus sanguineus. Light microscopy showed infection rates of 44.69%, 68.50% & 15.75%, in hemolymph, midgut and salivary gland, respectively. H. canis recorded the highest rates in hemolymph and midgut (35.89% & 49.82%, respectively), but Theileria spp. was the lowest (0.73% & 2.93%, respectively). In salivary gland smears, Babesia canis. was detected in 13.55% and Theileria spp. in 1.83%. Mixed infection in same tick was recorded in 4.76% &0.37% in midgut and salivary gland smears, respectively. Babesia canis stages were recovered from 15% of egg smears. R. sanguineus was natural infected by Babesia, Theileria, Hepatozoon and Anaplasma phagocytophilum as well as mixed infections of protozoa accompanied by a complicated sign of diseases and failure in accurate diagnosis.

Download Full-text