Results 41 to 50 of about 1,619 (134)

Rickettsiales in South America: A Systematic Review of Their Molecular Detection and Distribution in Arthropods and Vertebrates

Public Health Challenges, Volume 5, Issue 2, June 2026.
ABSTRACT Bacteria of the order Rickettsiales comprise a diverse group of obligate intracellular microorganisms that are globally distributed and highly prevalent in tropical and subtropical regions. In South America, these bacteria have been associated with arthropod vectors, such as ticks, fleas, mites, lice, and certain dipterans, as well as with a ...
Cristian J. Zamorano‐Gómez, Paula A. Ossa‐López, Estefani T. Martínez‐Sánchez, Fredy A. Rivera‐Paéz   +3 more
wiley   +1 more source

Latent Neoehrlichia mikurensis Infections May Be Reactivated in Patients With B‐Cell Lymphomas Treated With Rituximab

Immunology, Volume 178, Issue 2, Page 307-317, June 2026.
Eight percent of this cohort of patients had a latent Neoehrlichia mikurensis infection. It was only the latently infected patients who had N. mikurensis‐specific T cells, not the matched B‐cell lymphoma patients without the infection. The T‐cell responses of latently infected patients included perforin‐expressing Th1 and CD8+ T cells that upregulated ...
Linda Wass, Catharina Lewerin, Daniel Jaén‐Luchoro, Christine Lingblom, Christine Wennerås   +4 more
wiley   +1 more source

Molecular Phylogeny and Strain Genotyping of the Bacterial Endosymbiont Wolbachia Associated With Tuta absoluta Populations

Entomologia Experimentalis et Applicata, Volume 174, Issue 5, Page 387-397, May 2026.
This study was designed to understand the association between reproductive endosymbiotic bacteria and wild and laboratory‐reared Tuta absoluta populations. The majority of T. absoluta populations showed Wolbachia presence at varying levels of infection, whereas Arsenophonus, Cardinium, and Spiroplasma were not detected. Wolbachia‐positive T.
Ashok B. Hadapad, Arpit Prashar, Vikas G. C. Rana, Basavaraj S. Kalmath, Sridhar Vaddi, Ramesh S. Hire   +5 more
wiley   +1 more source

Tick-Borne Diseases—Still a Challenge: A Review

Biologics
Tick-borne diseases account for a large proportion of vector-borne illnesses. They include, for example, a variety of infections caused by bacteria, spirochetes, viruses, rickettsiae, and protozoa.
Radina Andonova, Dzhaner Bashchobanov, Veronika Gadzhovska, Georgi Popov   +3 more
doaj   +1 more source

Sp110 transcription is induced and required by Anaplasma phagocytophilum for infection of human promyelocytic cells

BMC Infectious Diseases, 2007
Background The tick-borne intracellular pathogen, Anaplasma phagocytophilum (Rickettsiales: Anaplasmataceae) causes human granulocytic anaplasmosis after infection of polymorphonuclear leucocytes. The human Sp110 gene is a member of the nuclear body (NB)
Naranjo Victoria, Blouin Edmour F, Manzano-Roman Raúl, de la Fuente José, Kocan Katherine M   +4 more
doaj   +1 more source

Ticks and tick‐borne bacterial pathogens found on hard ticks (Acari: Ixodidae) on cattle in the Central River region of The Gambia

Medical and Veterinary Entomology, Volume 40, Issue 1, Page 91-100, March 2026.
First detection of Ehrlichia minasensis, Anaplasma marginale and hemotropic Mycoplasma spp. in cattle in The Gambia. Identification of four tick species, with Hyalomma marginatum being the most common. 15.6% of ticks tested positive for tick‐borne pathogens, including Ehrlichia spp., A. marginale and hemotropic Mycoplasma spp.
Alpha Kargbo, Aamir M. Osman, Edrisa Jawo, Lamin K. M. Fatty, Flavia C. M. Collere, Marcos R. André, Ahmed A. Hassan‐Kadle, Thállitha S. W. J. Vieira, Rosangela Z. Machado, Rafael F. C. Vieira   +9 more
wiley   +1 more source

Surveillance of Zoonotic Pathogens in Small Mammals Across Forests With Different Levels of Anthropization in Eastern France

Transboundary and Emerging Diseases, Volume 2026, Issue 1, 2026.
The emergence of infectious diseases associated with land‐use changes is well‐documented. However, the presence and dynamics of zoonotic pathogens in small mammals within European forests, whether from rural development or urban greening, remain underexplored.
Marie Bouilloud, Maxime Galan, Anaïs Bordes, Caroline Tatard, Philippe Gauthier, Julien Pradel, Guillaume Castel, Hussein Alburkat, Lara Dutra, Tarja Sironen, Clémence Galon, Sara Moutailler, Zorée Djelouadji, Benjamin Roche, Nathalie Charbonnel, Javier Millán   +15 more
wiley   +1 more source

Mitochondrial Dysfunction in Ehrlichia canis Infection

Transboundary and Emerging Diseases, Volume 2026, Issue 1, 2026.
Transmitted by tick vectors, Ehrlichia canis (E. canis) is a Gram‐negative, obligate intracellular bacterium of zoonotic concern that infects both canine and human hosts. Its pathogenesis centers on the targeting of mononuclear phagocytes, where it establishes an intracellular niche by suppressing phagolysosomal fusion and evading immune detection ...
Xishuai Tong, Jing Jiang, Liu Yang, Yunying Liu, Li Chen, Xiaohui Fu, Gengsheng Yu, Naineng Chen, Shuo Tian, Siyang Huang, Shucheng Huang, Jameel Ahmed Buzdar, Xiang Chen, Zongping Liu, Francesco Mira   +14 more
wiley   +1 more source

Molecular Diagnosis and Phylogenetic Analysis of Hemotropic Mycoplasmas and Anaplasma spp. in Peripheral Blood of Goats in Northern Iran and Their Hematobiochemical Alterations

Veterinary Medicine International, Volume 2026, Issue 1, 2026.
Anaplasma and hemoplasma are hemotropic bacteria that infect erythrocytes of various animal hosts and are responsible for significant veterinary health problems. This study aimed to determine the prevalence of Anaplasma spp. and hemotropic Mycoplasma spp. in goats in Mazandaran Province, Northern Iran.
Masoud Nematinezhad, Hassan Sharifiyazdi, Saeed Nazifi, Tina Yaghoobpour, Mojtaba Rahsepar, Seyed Mohammad Bagher Hosseini, Nora Mestorino   +6 more
wiley   +1 more source

Primary and Secondary Symbionts of Cambodian Cicadellidae and the Role of Parasitisation

Environmental Microbiology Reports, Volume 17, Issue 5, October 2025.
Leafhoppers are key agricultural pests, and their interactions with parasitoids may be influenced by microbial symbionts. In this study, we characterized the bacterial communities of six Cambodian leafhopper species and their parasitoids, finding that while Sulcia dominates leafhopper microbiotas, parasitoids exhibit higher microbial diversity.
Sophany Phauk, Lorenzo Assentato, Seanghun Meas, Olle Terenius   +3 more
wiley   +1 more source