Results 71 to 80 of about 5,340 (173)

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

Rickettsia parkeri in Amblyomma triste from Uruguay

Emerging Infectious Diseases, 2004
Our goal was to detect whether spotted fever group Rickettsia are found in the suspected vector of rickettsioses, Amblyomma triste, in Uruguay. Rickettsia parkeri was detected in A.
José M. Venzal, Aránzazu Portillo, Agustín Estrada-Peña, Oscar Castro, Perla A. Cabrera, José A. Oteo   +5 more
doaj   +1 more source

Impacts of rodents in piggeries in Australia – review and pilot impact study

Pest Management Science, Volume 82, Issue 3, Page 2177-2189, March 2026.
Rodent impacts in Australian piggeries are under‐researched, with limited data on economic losses and control costs. A review and pilot study found average losses of AUD$100 000 annually. Key concerns include disease, damage, and control expenses.
Peter R. Brown, Steve Henry
wiley   +1 more source

Rickettsia africae in the West Indies

Emerging Infectious Diseases, 2006
Rickettsia africae is the agent of African tick-bite fever, a mild but common disease of local persons and tourists in Africa. The major vector of this spotted fever group rickettsia is most likely Amblyomma variegatum, the tropical bont tick, which has ...
Patrick J. Kelly
doaj   +1 more source

Amblyomma cajennense Sensu Stricto (Fabricius, 1787) and Amblyomma sculptum (Berlese, 1888) Tick Saliva Elicit Immune‐Modulatory Activity in Isolated Murine Macrophages With an Insight Into Proteomic Analysis

Parasite Immunology, Volume 48, Issue 3, March 2026.
ABSTRACT Tick saliva is known to cause immunosuppression and help pathogen transmission. Amblyomma sculptum is a public health concern as a vector of Rickettsia rickettsii. Another close‐related species is Amblyomma cajennense sensu stricto (s.s.). The impact of saliva from these species on murine macrophages remains unclear.
André de Abreu Rangel Aguirre, Valdison Pereira dos Reis, Sulamita da Silva Setúbal, Angélica Lorena Pereira Mendes Carioca, Ketlei Monteiro Tavares, Geisa Paulino Caprini Evaristo, Joseph Albert Medeiros Evaristo, Fábio César Sousa Nogueira, Jansen Fernandes Medeiros, Juliana Pavan Zuliani   +9 more
wiley   +1 more source

Dermacentor occidentalis Ticks and Link to Rickettsia lanei Infections, California, USA

Emerging Infectious Diseases
Rickettsia lanei is a newly recognized spotted fever group rickettsial species that causes severe Rocky Mountain spotted fever–like illness. We used genome sequencing, enabled by hybridization capture-based target enrichment, to establish Dermacentor ...
Will S. Probert, Chantha Kath, Naomi Putirka, Megan E.M. Saunders, Brenda Bermudez, Matthew I. Cazas, Alex Espinosa, Hannah Romo, Jill K. Hacker   +8 more
doaj   +1 more source

Molecular Screening of Black Flies (Diptera: Simuliidae) for Vector‐Borne Zoonotic Pathogens, South Moravia, Czech Republic

Zoonoses and Public Health, Volume 73, Issue 1, Page 95-106, February 2026.
ABSTRACT Introduction Black flies (Simuliidae) are globally distributed blood‐feeding arthropods and vectors of viral, bacterial, and parasitic pathogens to many animal species, including humans. We investigated the occurrence of selected vector‐borne pathogens in black flies in South Moravia, Czech Republic, and evaluated their possible role in the ...
Silvie Šikutová, Kristína Mravcová, Jan Mendel, Oldřich Šebesta, Bohumil Sak, Nikola Holubová, Martin Kváč, Clifton McKee, Peter H. Adler, D. Otranto, Ivo Rudolf   +10 more
wiley   +1 more source

County-level surveillance for the American dog tick (Dermacentor variabilis) and Rickettsia species in Kentucky

Scientific Reports
Spotted fever group (SFG) rickettsiosis includes a group of illnesses with similar symptoms caused by Rickettsia species bacteria. While Rickettsia rickettsii, the agent of Rocky Mountain spotted fever (RMSF) is a well-known pathogen, other SFG ...
Callista W. Vandegriff, Jun Seok Ryoo, Maria C. Carrasquilla, Anna R. Pasternak, Wayne T. Sanderson, Subba R. Palli   +5 more
doaj   +1 more source

Spotted fever rickettsioses causing myocarditis and ARDS: a case from Sri Lanka

BMC Infectious Diseases, 2018
Background Spotted fever group of rickettsial infections are emerging in Sri Lanka. We describe a patient with rapidly progressing ARDS and myocarditis secondary to spotted fever caused by Rickettsia conorii.
H. M. L. Y. Herath, J. M. H. D. Jayasundara, S. D. N. Senadhira, S. A. M. Kularatne, W. K. S. Kularatne   +4 more
doaj   +1 more source

Plant Virus‐Induced Inheritable Apoptosis Drives Reproductive Costs in Female Insect Vectors to Balance Viral Biparental Transmission

Advanced Science, Volume 13, Issue 5, 27 January 2026.
Rice gall dwarf virus (RGDV), transmitted biparentally by leafhopper vector to their offspring, exploits the capsid protein to induce inheritable ovarian apoptosis via insulin‐driven PI3K/AKT/FoxO signaling axis. This mechanism enhances infection but reduces female reproductive fitness, causing inefficient maternal transmission.
Haibo Wu, Wenqiang Wan, Qingquan Liang, Hengsong Yang, Chengcong Lu, Taiyun Wei, Qian Chen   +6 more
wiley   +1 more source