Results 231 to 240 of about 17,827 (257)
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Amblyomma americanum: a Potential Vector of Human Ehrlichiosis

The American Journal of Tropical Medicine and Hygiene, 1993
Polymerase chain reaction primers specific for Ehrlichia chaffeensis were used to amplify DNA from extracts of pooled ticks. Amplification was performed on extracts from 140 pools (1,579 total ticks) consisting of three tick genera collected from five states.
James E. Childs   +7 more
openaire   +3 more sources

Transmission of Cytauxzoon felis to a domestic cat by Amblyomma americanum

Veterinary Parasitology, 2009
Cytauxzoon felis was transmitted to a domestic cat by Amblyomma americanum. The infection was produced by the bite of A. americanum adults that were acquisition fed as nymphs on a domestic cat that naturally survived infection of C. felis. Fever, inappetence, depression, and lethargy were first noted 11 days post-infestation (dpi). Pale mucus membranes,
Timothy A. Snider   +6 more
openaire   +3 more sources

Evidence for regurgitation by Amblyomma americanum

Veterinary Parasitology, 1988
Western blot analysis of Amblyomma americanum-derived midgut extracts using tick-resistant rabbit and guinea pig antisera demonstrated several unique polypeptides ranging from 7 to 355 kDa. These polypeptides were not observed in similar blots of salivary gland extracts or serum from the respective host animals.
openaire   +3 more sources

Seasonal Activity and Relative Abundance of Amblyomma americanum in Mississippi

Journal of Medical Entomology, 1996
Ecological investigations of the lone star tick, Amblyomma americanum (L.), were conducted in 3 adjacent 60-m2 plots, located in Noxubee National Wildlife Refuge, Noxubee County, Mississippi. Ticks were collected weekly from July 1992 to July 1993 by flagging randomly selected lanes.
Douglas M. Gaydon   +2 more
openaire   +3 more sources

Attempted transmission of human granulocytotropic Ehrlichia (HGE) by Amblyomma americanum and Amblyomma maculatum

Veterinary Parasitology, 1997
Transstadial transmission of human granulocytotrophic Ehrlichia (HGE) was attempted in dogs using Amblyomma americanum (L.) and A. maculatum Koch, two species that, as adults, feed readily on human beings. Larvae and nymphs were acquisition-fed on a dog that was parasitemic with HGE.
R. W. Barker   +5 more
openaire   +3 more sources

The molecular basis of the Amblyomma americanum tick attachment phase

Experimental and Applied Acarology, 2007
Towards discovery of molecular signaling cascades that trigger and/or facilitate the tick attachment and formation of its feeding lesion, suppressive subtractive hybridization, high throughput sequencing and validation of differential expression by cDNA dot blot hybridization were performed on Amblyomma americanum ticks that had attained appetence and ...
Maria A. Blandon   +2 more
openaire   +3 more sources

Rickettsia spp. Infecting Lone Star Ticks (Amblyomma americanum) (Acari: Ixodidae) in Monmouth County, New Jersey

Journal of medical entomology, 2020
Tick-borne rickettsiae are undergoing epidemiological changes in the eastern United States while human encounters with lone star ticks (Amblyomma americanum L.) have increased substantially.
A. Egizi, Sydney Gable, R. Jordan
semanticscholar   +1 more source

Synthetic Pyrethroid, Natural Product, and Entomopathogenic Fungal Acaricide Product Formulations for Sustained Early Season Suppression of Host-Seeking Ixodes scapularis (Acari: Ixodidae) and Amblyomma americanum Nymphs

Journal of medical entomology, 2020
We compared the ability of product formulations representing a synthetic pyrethroid acaricide (Talstar P Professional Insecticide), a natural product-based acaricide (Essentria IC3), and an entomopathogenic fungal acaricide (Met52 EC Bioinsecticide) to ...
T. Schulze, R. Jordan
semanticscholar   +1 more source

Population genetic structure and demographic history of the lone star tick, Amblyomma americanum (Ixodida: Ixodidae): new evidence supporting old records.

Molecular Ecology, 2020
Range expansions are a potential outcome of changes in habitat suitability, which commonly result as a consequence of climate change. Hypotheses on such changes in the geographic distribution of a certain species can be evaluated using population genetic
P. Lado   +3 more
semanticscholar   +1 more source

Rickettsia amblyommiiInfectingAmblyomma americanumLarvae

Vector-Borne and Zoonotic Diseases, 2008
Polymerase chain reaction analysis of Amblyomma americanum adults, nymphs, and larvae from Aberdeen Proving Ground, MD (APG), revealed a very high prevalence of a spotted fever group (SFG) rickettsia. Restriction fragment length polymorphism (RFLP) and sequence analysis identified "Rickettsia amblyommii." This organism is not yet described or well ...
Ellen Y. Stromdahl   +4 more
openaire   +3 more sources

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