Results 51 to 60 of about 1,338 (118)

Seroprevalence of Rickettsia bellii and Rickettsia felis in dogs, São José dos Pinhais, State of Paraná, Brazil Soroprevalência de Rickettsia bellii e Rickettsia felis em cães, São José dos Pinhais, Paraná, Brasil

Revista Brasileira de Parasitologia Veterinária, 2010
Brazilian spotted fever (BSF) is a vector-borne zoonosis caused by Rickettsia rickettsii bacteria. Dogs can be host sentinels for this bacterium. The aim of the study was to determine the presence of antibodies against Rickettsia spp.
Fernanda Silva Fortes, Iara Silveira, Jonas Moraes-Filho, Ronaldo Viana Leite, José Edivaldo Bonacim, Alexander Welker Biondo, Marcelo Bahia Labruna, Marcelo Beltrão Molento   +7 more
doaj   +1 more source

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

Ticks and tick‐borne pathogens in selected abattoirs and a slaughter slab in Kumasi, Ghana

Veterinary Medicine and Science, Volume 10, Issue 5, September 2024.
•Amblyomma variegatum was the predominant tick species. •Zoonotic pathogens R. africae, R. aeschlimannii, C. burnetii and CCHFV were identified. •Abattoir workers are at risk of zoonotic infections. Abstract Background Ticks are vectors of pathogens that affect the health of animals and humans. With the constant trade of livestock across borders, there
Stacy Amoah, Nancy Martekai Unicorn, Emmanuella Tiwaa Kyeremateng, Genevieve Desewu, Patrick Kwasi Obuam, Richard Odoi‐Teye Malm, Emmanuel Osei‐Frempong, Francisca Adai Torto, Stephen Kwabena Accorlor, Kwadwo Boampong, Sandra Abankwa Kwarteng, Seth Offei Addo, John Asiedu Larbi   +12 more
wiley   +1 more source

Reassessment of the genetic basis of natural rifampin resistance in the genus Rickettsia

MicrobiologyOpen, Volume 13, Issue 4, August 2024.
Contrary to previous studies, the natural resistance of Rickettsia, a genus of intracellular bacteria, to the antibiotic rifampin is not solely due to the Leu‐973 residue in the RNA polymerase β subunit. Abstract Rickettsia, a genus of obligate intracellular bacteria, includes species that cause significant human diseases.
Julien Amoros, Noor Fattar, Marie Buysse, Meriem Louni, Joanne Bertaux, Didier Bouchon, Olivier Duron   +6 more
wiley   +1 more source

Rickettsia parkeri Infection after Tick Bite, Virginia

Emerging Infectious Diseases, 2007
We describe a man with a febrile illness and an eschar that developed at the site of a tick bite. Rickettsia parkeri was detected and isolated from the eschar. This report represents the second documented case of R.
Timothy J. Whitman, Allen L. Richards, Christopher D. Paddock, Cindy L. Tamminga, Patrick J. Sniezek, Ju Jiang, David K. Byers, John W. Sanders   +7 more
doaj   +1 more source

Tools and mechanisms of vacuolar escape leading to host egress in Legionella pneumophila infection: Emphasis on bacterial phospholipases

Molecular Microbiology, Volume 121, Issue 3, Page 368-384, March 2024.
Scheme of how secreted exit‐associated phospholipases are engaged by Legionella pneumophila during lytic escape. 1. L. pneumophila enters the host cell in an endocytic manner. 2. The bacterium actively establishes an intracellular niche (Legionella‐containing vacuole, LCV) which is required for replication.
Jonathan Neuber, Christina Lang, Philipp Aurass, Antje Flieger   +3 more
wiley   +1 more source

Isolation and Genetic Characterization of the Human Relapsing Fever Spirochete Borrelia persica from a Dog with Improved Cultivation Techniques

Transboundary and Emerging Diseases, Volume 2024, Issue 1, 2024.
Borrelia persica is the causative agent of tick‐borne relapsing fever in Israel and is prevalent in the Eastern Mediterranean basin and parts of Asia. Infection with B. persica causes severe illness and potentially life‐threatening complications in humans and companion animals. Isolation and in vitro cultivation of B.
Dor Shwartz, Yaarit Nachum-Biala, Bar Ben-Shitrit, Reinhard K. Straubinger, Gad Baneth, Serafeim C. Chaintoutis   +5 more
wiley   +1 more source

Rickettsiae in Gulf Coast Ticks, Arkansas, USA

Emerging Infectious Diseases, 2010
To determine the cause of spotted fever cases in the southern United States, we screened Gulf Coast ticks (Amblyomma maculatum) collected in Arkansas for rickettsiae.
Rebecca Trout, C. Dayton Steelman, Allen L. Szalanski, Phillip C. Williamson   +3 more
doaj   +1 more source

The Rickettsia actin-based motility effectors RickA and Sca2 contribute differently to cell-to-cell spread and pathogenicity

mBio
Rickettsia parkeri is an obligate intracellular, tick-borne bacterial pathogen that can cause eschar-associated rickettsiosis in humans. R. parkeri invades host cells, escapes from vacuoles into the cytosol, and undergoes two independent modes of actin ...
Cuong J. Tran, Zahra Zubair-Nizami, Ingeborg M. Langohr, Matthew D. Welch   +3 more
doaj   +1 more source

Rickettsia parkeri in Amblyomma americanum Ticks, Tennessee and Georgia, USA

Emerging Infectious Diseases, 2009
To determine the geographic distribution of the newly recognized human pathogen Rickettsia parkeri, we looked for this organism in ticks from Tennessee and Georgia, USA. Using PCR and sequence analysis, we identified R.
Sara B. Cohen, Michael J. Yabsley, Laurel E. Garrison, James D. Freye, Brett G. Dunlap, John R. Dunn, Daniel G. Mead, Timothy F. Jones, Abelardo C. Moncayo   +8 more
doaj   +1 more source