Results 51 to 60 of about 10,073 (186)

Diversity and seasonality of host-seeking ticks in a periurban environment in the Central Midwest (USA).

PLoS ONE, 2021
Between March 2014 and February 2017, host-seeking ticks were collected during the late spring and summer months seasonally, and as well as continually through all seasons from several sites in a periurban environment in Pittsburg, Kansas, located in the
Ali Hroobi, Gunavanthi D Boorgula, David Gordon, Jianfa Bai, Doug Goodin, Gary Anderson, Savannah Wilson, Alex Staggs, Ram K Raghavan   +8 more
doaj   +1 more source

Systematics and population structure of Amblyomma maculatum group ticks and Rickettsia parkeri, an emerging human pathogen in southern Arizona, USA [PDF]

, 2021
The recent discovery of Amblyomma maculatum sensu lato (s. l.) ticks in southern Arizona has renewed discussions around species designations for members of the Amblyomma maculatum tick group. Amblyomma maculatum s. l.
Allerdice, Michelle E. J.
core  

Rickettsia parkeri in Gulf Coast Ticks, Southeastern Virginia, USA

Emerging Infectious Diseases, 2011
We report evidence that Amblyomma maculatum tick populations are well established in southeastern Virginia. We found that 43.1% of the adult Gulf Coast ticks collected in the summer of 2010 carried Rickettsia parkeri, suggesting that persons living in or
Chelsea L. Wright, Robyn M. Nadolny, Ju Jiang, Allen L. Richards, Daniel E. Sonenshine, Holly D. Gaff, Wayne L. Hynes   +6 more
doaj   +1 more source

Rickettsia parkeri and Rickettsia montanensis, Kentucky and Tennessee, USA

Emerging Infectious Diseases, 2014
We found that 14.3% (15/105) of Amblyomma maculatum and 3.3% (10/299) of Dermacentor variabilis ticks collected at 3 high-use military training sites in west-central Kentucky and northern Tennessee, USA, were infected with Rickettsia parkeri and ...
Benedict B. Pagac, Melissa K. Miller, Meagan C. Mazzei, David H. Nielsen, Ju Jiang, Allen L. Richards   +5 more
doaj   +1 more source

Automated identification of spotted‐fever tick vectors using convolutional neural networks

Medical and Veterinary Entomology, Volume 39, Issue 4, Page 829-841, December 2025.
We evaluate the performance of convolutional neural networks (CNN) AlexNet, ResNet‐50 and MobileNetV2 for the automated identification of tick species capable of transmitting spotted fever. CNNs achieved accuracy rates of ~90% in identifying ticks and showed sensitivities of 59%–100% according to species, sex, position or image resolution.
Isadora R. C. Gomes, Vinícius L. Miranda, José Fabrício C. Leal, Igor P. Oliveira, Paula J. Silva, Karla Bitencourth, Claudio M. Rodrigues, Liege R. Siqueira, Marcelo B. Labruna, Gilberto S. Gazeta, Marinete Amorim, Rodrigo Gurgel‐Gonçalves   +11 more
wiley   +1 more source

Harnessing 50 years of tick population genetics: Choosing the right molecular tool for contemporary research

Journal of Animal Ecology, Volume 94, Issue 11, Page 2159-2177, November 2025.
Population genetics reveals how ticks interact with hosts, microbiomes and environments. This review guides researchers in choosing the best tool for the job, weighing cost, resolution, reproducibility and throughput to study tick population structure. Abstract Ticks are ectoparasites of major medical, veterinary and ecological importance, transmitting
Xavier Barton, Joseph B. Fontaine, Shanan S. Tobe, Charlotte L. Oskam   +3 more
wiley   +1 more source

In Vitro Propagation of Candidatus Rickettsia andeanae Isolated From Amblyomma maculatum [PDF]

, 2012
Candidatus Rickettsia andeanae was identified during an investigation of a febrile outbreak in northwestern Peru (2002). DNA sequencing from two ticks (Amblyomma maculatum, Ixodes boliviensis) collected during the investigation revealed a novel ...
Holly D. Gaff, Richards, Allen L., Sonenshine, Daniel E., Alison Luce-Fedrow, Wright, Chelsea, Luce-Fedrow, Alison, Hynes, Wayne L., Daniel E. Sonenshine, Allen L. Richards, Wayne L. Hynes, Chelsea Wright, Gaff, Holly D.   +11 more
core   +1 more source

Extracellular Vesicles in Arthropods: Biogenesis, Functions, Isolation Methods and Applications

Journal of Extracellular Vesicles, Volume 14, Issue 9, September 2025.
ABSTRACT Extracellular vesicles (EVs) are membrane‐bound nanoparticles secreted by cells that are involved in multiple forms of intercellular communication and show promising potential for biotechnological applications. Arthropod‐derived EV research remains relatively fragmented in contrast to the extensively studied mammalian EV field. In this review,
Simon Remans, Stijn Van den Brande, Jozef Vanden Broeck, Dulce Santos   +3 more
wiley   +1 more source

Amblyomma maculatum Transcriptome or Gene expression

, 2022
Bulk RNA sequencing of R. parkeri infected and uninfected hemocytes from Amblyomma maculatum revealed 39,249 mRNA transcripts. Differential gene expression analysis revealed 17 upregulated and 35 downregulated genes with immune functions in R.
National Institute of Allergy and Infectious Diseases (17856578)
core  

Discovery of Alpha-Gal-Containing Antigens in North American Tick Species Believed to Induce Red Meat Allergy

Frontiers in Immunology, 2019
Development of specific IgE antibodies to the oligosaccharide galactose-α-1, 3-galactose (α-gal) following tick bites has been shown to be the source of red meat allergy. In this study, we investigated the presence of α-gal in four tick species: the lone-
Gary Crispell, Scott P. Commins, Stephanie A. Archer-Hartman, Shailesh Choudhary, Guha Dharmarajan, Parastoo Azadi, Shahid Karim   +6 more
doaj   +1 more source