Results 71 to 80 of about 1,833 (165)

Experimental infection of Rickettsia parkeri in the Rhipicephalus microplus tick

Ticks and Tick-borne Diseases, 2018
This study aimed to evaluate, by means of artificial feeding, the interaction between a pathogenic rickettsia and the hard tick R. microplus. We used partially engorged females fed on calves free of Rickettsia spp. Group 1 (G1), containing 20 ticks, was fed bovine blood only.
Matheus Dias, Cordeiro, Bruna, de Azevedo Baêta, Patricia Barizon, Cepeda, Rafaella Câmara, Teixeira, Carla Carolina Dias Uzedo, Ribeiro, Jaqueline Rodrigues, de Almeida Valim, Adriano, Pinter, Adivaldo Henrique, da Fonseca   +7 more
openaire   +2 more sources

Early Tick Species Identification Using Eschar‐Based PCR to Guide Presymptomatic Risk Assessment in Tick‐Borne Diseases

Clinical Case Reports, Volume 14, Issue 4, April 2026.
ABSTRACT In endemic regions where simultaneous larval tick bites frequently occur, early identification of tick species from eschar lesions may substantially influence presymptomatic clinical triage. We report a 78‐year‐old woman who was found after approximately 24 h of wandering, presenting with multiple clustered eschars on the lower extremities and
Makoto Kondo, Koji Habe, Keiichi Yamanaka   +2 more
wiley   +1 more source

Ecological dynamics of blacklegged ticks, vertebrate hosts, and associated zoonotic pathogens in northeastern forests

Ecosphere, Volume 16, Issue 12, December 2025.
Abstract Specific host‐tick interactions in temperate forest systems influence variation in density and infection prevalence of nymphal blacklegged tick (Ixodes scapularis). The density of infected nymphs (DIN), which is the product of nymphal infection prevalence (NIP) and density of questing nymphs (DON), influences the risk of human exposure to tick‐
Shannon L. LaDeau, Kelly Oggenfuss, Alexander Schmidt, Saravanan Thangamani, Richard S. Ostfeld   +4 more
wiley   +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

Effects of temperature on bacterial microbiome composition in Ixodes scapularis ticks

MicrobiologyOpen, Volume 8, Issue 5, May 2019., 2019
In North America, the blacklegged deer tick (Ixodes scapularis) is the primary vector of Lyme disease. Although environmental factors (e.g., temperature and humidity) are known to influence the incidence of Lyme disease, their impact on the tick microbial community is largely unknown. Given reports that nonpathogenic bacteria within ticks can influence
Santosh Thapa, Yan Zhang, Michael S. Allen   +2 more
wiley   +1 more source

Molecular Detection and Genetic Identification of Rickettsia Infection in Ixodes granulatus Ticks, an Incriminated Vector for Geographical Transmission in Taiwan

Microorganisms, 2021
Tick-borne Rickettsia pathogens have become an emerging source of zoonotic infections and have a major impact on human health worldwide. In this study, the prevalence and genetic identity of Rickettsia infections in Ixodes granulatus ticks was firstly ...
Chien-Ming Shih, Pei-Wen Yang, Li-Lian Chao   +2 more
doaj   +1 more source

High‐Throughput Pipeline for Protein Expression and Solubility Profiling Using Synthetically Generated Plasmids

Current Protocols, Volume 5, Issue 7, July 2025.
Abstract High‐throughput protein expression and purification can now take advantage of the copious expansion of genes from extensive genomics and metagenomic surveillance programs. This article outlines a pipeline that involves strategic selection of a large repertoire of protein targets for cloning by commercial synthetic services, followed by high ...
Supratim Dey, Saurabh Gireesan, Theodora Solovou, Nicole L. Inniss, Karla J. F. Satchell   +4 more
wiley   +1 more source

Identification of a Ribosomal Protein RpsB as a Surface‐Exposed Protein and Adhesin of Rickettsia heilongjiangensis

BioMed Research International, Volume 2019, Issue 1, 2019., 2019
Rickettsia heilongjiangensis is an obligate intracellular bacterium that is responsible for far‐eastern spotted fever. Surface‐exposed proteins (SEPs) play important roles in its pathogenesis. Previous work identified a ribosomal protein RpsB as an SEP by biotin‐avidin affinity, a seroreactive antigen, and a diagnostic candidate protein, indicating ...
Yong Qi, Jixian Rao, Wanpeng Shen, Jiameng Li, Wenwen Zeng, Shulong Zheng, Suyun Liu, Yuping Li, Bijun Wang, Fan Wu, Yuchao Li, Yuexi Li, Clara G. De los Reyes-Gavilan   +12 more
wiley   +1 more source

Experimental infection of cotton rats and bobwhite quail with Rickettsia parkeri [PDF]

Parasites & Vectors, 2013
Abstract Background Amblyomma maculatum is the primary vector for Rickettsia parkeri, a spotted fever group rickettsia (SFGR) and human pathogen. Cotton rats and quail are known hosts for larval and nymphal A. maculatum; however, the role of these hosts in the ecology of R. parkeri is unknown.
Moraru, Gail, Goddard, Jerome, Paddock, Christopher D, Varela-Stokes, Andrea   +3 more
openaire   +2 more sources

Diversity of Ticks in the Caribbean Region and Detection of Their Pathogens Using BioMark Technology

Transboundary and Emerging Diseases, Volume 2025, Issue 1, 2025.
Introduction Ticks and the pathogens they transmit are widespread in Caribbean animal populations. There is; however, limited information on the diversity of ticks and tick‐borne pathogens (TTBPs) in the region. This study aims to identify TTBPs across multiple Caribbean countries using a high‐throughput real‐time microfluidic PCR system.
Roxanne A. Charles, Emmanuel Albina, Mathilde Gondard, Rosalie Aprelon, Clemence Galon, Mark Trotman, Colbert Bowen, Sharmine Melville, Kofi Sylvester, Lisa Musai, Michael Morris, Christopher Oura, Sara Moutailler, Karla Georges, Yong-guo Cao   +14 more
wiley   +1 more source