Results 51 to 60 of about 1,013 (116)

Diversity of bartonellae in mites (Acari: Mesostigmata: Macronyssidae and Spinturnicidae) of boreal forest bats: Association of host specificity of mites and habitat selection of hosts with vector potential

Medical and Veterinary Entomology, Volume 38, Issue 4, Page 518-529, December 2024.
Bats play a major role in the circulation of zoonotic pathogens. Mites (Macronyssidae and Spinturnicidae) may facilitate the long‐term maintenance (and even local recurrence) of Bartonella‐infestations. Mites may transmit several distinct Bartonella strains, which cluster phylogenetically close to Bartonella species known for their zoonotic role ...
Attila D. Sándor, Alexandra Corduneanu, Maria Orlova, Sándor Hornok, Alejandro Cabezas‐Cruz, Angélique Foucault‐Simonin, Joanna Kulisz, Zbigniew Zając, Mihai Borzan   +8 more
wiley   +1 more source

Inoculation Eschars and Fever: A Case of African Tick Bite Fever

Revista da Sociedade Portuguesa de Dermatologia e Venereologia, 2019
African tick bite fever is caused by the intracellular bacteria Rickettsia africae. This bacterium is transmitted through the bite of the Amblyomma tick, which carries a high rate of R. africae infection.
R. Bouceiro-Mendes, M. Mendonça-Sanches, L. Soares-de-Almeida, I. Correia-Fonseca   +3 more
doaj   +1 more source

First molecular diagnosis of the human pathogen Rickettsia raoultii and other spotted fever group rickettsiae in Sudanese ixodid ticks from domestic ruminants

Veterinary Medicine and Science, Volume 10, Issue 6, November 2024.
In this manuscript, the authors collected ixodid ticks and examined the presence of Rickettsia species by PCR. By performing sequencing and phylogenetic analysis, the authors identified the presence of four different Rickettsia species in three tick species found on three mammalian hosts.
Nagwa Eisawi, Jabbar Ahmed, Mohammed A. Bakheit, Dina A. Hassan, Mohammed O. Hussien, Abdel Rahim M. El Hussein   +5 more
wiley   +1 more source

Eschar-associated Spotted Fever Rickettsiosis, Bahia, Brazil

Emerging Infectious Diseases, 2011
In Brazil, Brazilian spotted fever was once considered the only tick-borne rickettsial disease. We report eschar-associated rickettsial disease that occurred after a tick bite. The etiologic agent is most related to Rickettsia parkeri, R. africae, and R.
Nanci Silva, Marina E. Eremeeva, Tatiana Rozental, Guilherme S. Ribeiro, Christopher D. Paddock, Eduardo Antonio G. Ramos, Alexsandra R.M. Favacho, Mitermayer G. Reis, Gregory A. Dasch, Elba R.S. de Lemos, Albert I. Ko   +10 more
doaj   +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

Novel Spotted Fever Group Rickettsiosis, Brazil

Emerging Infectious Diseases, 2010
We report a clinical case of spotted fever group rickettsiosis acquired in São Paulo, Brazil. Definitive diagnosis was supported by seroconversion between acute-phase and convalescent-phase serum samples.
Mariana G. Spolidorio, Marcelo B. Labruna, Elenice Mantovani, Paulo E. Brandão, Leonardo J. Richtzenhain, Natalino H. Yoshinari   +5 more
doaj   +1 more source

A Suite of Pathogens Detected in Ticks Sampled From Wildlife Hosts in Central Kenya

African Journal of Ecology, Volume 62, Issue 3, September 2024.
ABSTRACT Opportunistic sampling of ticks from animals during veterinary treatment offers important insights about wildlife exposure to pathogens. Here, we report pathogens and other tick‐borne organisms detected in ticks sampled from 10 animal species in and near Laikipia County, Kenya, in 2014–2016.
Derek McFarland Jr., L. Page Fredericks, Tyler Hedlund, Sharon Jones, Felicia Keesing, Mathew Mutinda, Brian F. Allan   +6 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

Prevalence and risk factors for Q fever, spotted fever group rickettsioses, and typhus group rickettsioses in a pastoralist community of northern Tanzania, 2016–2017

Tropical Medicine &International Health, Volume 29, Issue 5, Page 365-376, May 2024.
Abstract Background In northern Tanzania, Q fever, spotted fever group (SFG) rickettsioses, and typhus group (TG) rickettsioses are common causes of febrile illness. We sought to describe the prevalence and risk factors for these zoonoses in a pastoralist community.
Ganga S. Moorthy, Matthew P. Rubach, Michael J. Maze, Regina P. Refuerzo, Gabriel M. Shirima, AbdulHamid S. Lukambagire, Rebecca F. Bodenham, Shama Cash‐Goldwasser, Kate M. Thomas, Philoteus Sakasaka, Nestory Mkenda, Thomas R. Bowhay, Jamie L. Perniciaro, William L. Nicholson, Gilbert J. Kersh, Rudovick R. Kazwala, Blandina T. Mmbaga, Joram J. Buza, Venance P. Maro, Daniel T. Haydon, John A. Crump, Jo E. B. Halliday   +21 more
wiley   +1 more source

Pathogens, endosymbionts, and blood-meal sources of host-seeking ticks in the fast-changing Maasai Mara wildlife ecosystem.

PLoS ONE, 2020
The role of questing ticks in the epidemiology of tick-borne diseases in Kenya's Maasai Mara National Reserve (MMNR), an ecosystem with intensified human-wildlife-livestock interactions, remains poorly understood.
Joseph Wang'ang'a Oundo, Jandouwe Villinger, Maamun Jeneby, George Ong'amo, Moses Yongo Otiende, Edward Edmond Makhulu, Ali Abdulahi Musa, Daniel Obado Ouso, Lillian Wambua   +8 more
doaj   +1 more source