Results 1 to 10 of about 19,409 (219)

Spatial and temporal analyses of Dermacentor variabilis (Say) (Acari: Ixodidae) in central and eastern Canada. [PDF]

Med Vet Entomol
Dermacentor variabilis (Say) (Acari: Ixodidae) is a vector for pathogens that can impact human and animal health. The geographic range of this species is expanding, but there are some areas with limited up‐to‐date information on the distribution of D ...
Nichol GK, Weese JS, Dergousoff SJ, Greer AL, Clow KM.   +4 more
europepmc   +5 more sources

Spatial repellents transfluthrin and metofluthrin affect the behavior of Dermacentor variabilis, Amblyomma americanum, and Ixodes scapularis in an in vitro vertical climb assay. [PDF]

PLoS ONE, 2022
Repellents serve an important role in bite protection. Tick repellents largely rely on biomechanisms that induce responses with direct contact, but synthetic pyrethroids used as spatial repellents against insects have received recent attention for ...
Eric L Siegel, Marcos Olivera, Esteban Martinez Roig, Melynda Perry, Andrew Y Li, Sebastián D'hers, Noel M Elman, Stephen M Rich   +7 more
doaj   +4 more sources

Assessing the current and future potential geographic distribution of the American dog tick, Dermacentor variabilis (Say) (Acari: Ixodidae) in North America [PDF]

PLoS ONE, 2020
The American dog tick, Dermacentor variabilis, is a veterinary- and medically- significant tick species that is known to transmit several diseases to animal and human hosts. The spatial distribution of this species in North America is not well understood,
Andrew Townsend Peterson, Roman R Ganta, Ram K Raghavan   +2 more
exaly   +4 more sources

Powassan Virus Lineage I in Field-Collected Dermacentor variabilis Ticks, New York, USA [PDF]

Emerging Infectious Diseases, 2023
Powassan virus is a tickborne flavivirus that can cause lethal or debilitating neurologic illness. It is canonically transmitted by Ixodes spp. ticks but might spill over to sympatric Dermacentor species. We detected Powassan virus lineage I from a pool
Charles Hart, Erin Hassett, Chantal B.F. Vogels, Daniel Shapley, Nathan D. Grubaugh, Saravanan Thangamani   +5 more
doaj   +3 more sources

Establishment and range expansion of Dermacentor variabilis in the northern Maritimes of Canada: Community participatory science documents establishment of an invasive tick species. [PDF]

PLoS ONE, 2023
Tick populations are dependent on a complex interplay of abiotic and biotic influences, many of which are influenced by anthropic factors including climate change.
Andrea M Kirby, Ellis P Evans, Samantha J Bishop, Vett K Lloyd   +3 more
doaj   +3 more sources

Dermacentor variabilis Does Not Transstadially Transmit the U.S. Isolate of Theileria orientalis Ikeda: A Controlled Acquisition and Transmission Study [PDF]

Parasitologia, 2023
Theileria orientalis Ikeda, an emerging U.S. bovine hemoparasite, causes anemia, abortion, ill-thrift, and occasionally death. While Haemaphysalis longicornis is the primary vector, it is possible that other U.S.
Cynthia K. Onzere, Amany Hassan, David R. Herndon, Kennan Oyen, Karen C. Poh, Glen A. Scoles, Lindsay M. Fry   +6 more
doaj   +3 more sources

The genome of the American dog tick (Dermacentor variabilis). [PDF]

G3 (Bethesda)
Abstract The American dog tick (Dermacentor variabilis) is a vector of zoonotic pathogens in North America that poses emerging threats to public health. Despite its medical importance, genomic resources for D. variabilis remain scarce.
Cassens J, Villalta M, Aguirre S, Ecklund L, Stenger T, Abdi I, Venigalla S, Shiffman E, Bastug K, Thielen BK, Faulk C.   +10 more
europepmc   +5 more sources

Genetic diversity and phylogeographic relationships of Dermacentor variabilis (Acari: Ixodidae) within an established population in southern Manitoba (Canada), and the prevalence of Rickettsia montanensis and Francisella-like endosymbionts. [PDF]

J Med Entomol
The primary objective of this study was to determine if DNA sequences of the mitochondrial (mt) cytochrome oxidase c subunit 1 gene (cox1) and/or the mt 16S ribosomal RNA (rRNA) gene can be used to study the population genetics and phylogeography of the ...
Chilton NB, Thampy PR, Wolbaum CR, Sterling EE, Thoroughgood JT, Berg ED, Halpin AS, Diyes CP, Yunik MEM, Díaz-Sánchez AA, Rochon K, Lysyk TJ, Dergousoff SJ.   +12 more
europepmc   +4 more sources

Spotted-Fever Group Rickettsia in Dermacentor variabilis, Maryland [PDF]

Emerging Infectious Diseases, 2004
Three-hundred ninety-two adult Dermacentor variabilis were collected from six Maryland counties during the spring, summer, and fall of 2002. Infection prevalence for spotted fever group Rickettsia was 3.8%, as determined by polymerase chain reaction ...
Nicole C. Ammerman, Katherine I. Swanson, Jennifer M. Anderson, Timothy R. Schwartz, Eric C. Seaberg, Gregory E. Glass, Douglas E. Norris   +6 more
doaj   +4 more sources

Tick Ecdysteroid Hormone, Global Microbiota/Rickettsia Signaling in the Ovary versus Carcass during Vitellogenesis in Part-Fed (Virgin) American Dog Ticks, Dermacentor variabilis. [PDF]

Microorganisms, 2021
The transovarial transmission of tick-borne bacterial pathogens is an important mechanism for their maintenance in natural populations and transmission, causing disease in humans and animals.
Ponnusamy L, Sutton H, Mitchell RD, Sonenshine DE, Apperson CS, Roe RM.   +5 more
europepmc   +4 more sources