Results 181 to 190 of about 13,937 (220)

Vesicular Eruption Secondary to Bites by Larval Amblyomma americanum

Cutis, 2022
Tick-borne illness is an increasingly concerning cause of human infectious disease. Not only do ticks transmit disease, but their bites also may cause impressive local reactions. This report highlights a case of a widespread vesicular eruption secondary to bites by larval Amblyomma americanum sustained by a 58-year-old woman.
Anna B, Bahnson, Joann, Salvemini
openaire   +2 more sources

Questing behavior of adult Amblyomma americanum (L.) in a laboratory setting

Systematic and Applied Acarology, 2021
Tick-borne diseases are on the rise globally; however, information is lacking about tick questing behavior. In this laboratory study, we explored tick preferences for stem type (plastic grass, wooden, and metal), questing height, and head orientation ...
Miranda H. J. Huang, A. Jones, Afsoon Sabet, Jillian Masters, N. Dearing, S. Ward, J. Goddard   +6 more
semanticscholar   +1 more source

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, James G. Olson, Christine M. Happ, Joseph Piesman, Kimetha G. Sims, Burt E. Anderson, Barbara J. B. Johnson, Gary O. Maupin   +7 more
openaire   +3 more sources

Detection of Rickettsia Species, and Coxiella-Like and Francisella-Like Endosymbionts in Amblyomma americanum and Amblyomma maculatum from a Shared Field Site in Georgia, United States of America.

Vector Borne and Zoonotic Diseases, 2021
Two abundant species of aggressive ticks commonly feed on humans in Georgia: the Gulf Coast tick (Amblyomma maculatum) and the Lone Star tick (A. americanum). A. maculatum is the primary host of Rickettsia parkeri, "Candidatus Rickettsia andeanae," and a
Jasmine R Hensley, Maria L. Zambrano, A. Williams-Newkirk, G. Dasch   +3 more
semanticscholar   +1 more source

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, Amy C. Edwards, Susan E. Little, Mason V. Reichard, Katherine M. Kocan, Edmour F. Blouin, James H. Meinkoth   +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, Lorraine K. Jackson, Jerome Goddard   +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, Jacqueline E. Dawson, Sam R. Telford, Sidney A. Ewing, K. W. Pratt, J. S. Mathew   +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, Rabuesak Khumthong, Albert Mulenga   +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