Results 71 to 80 of about 4,003 (214)

INFECCIÓN POR RICKETTSIAS EN EL NOROESTE DE ARGENTINA

Revistas Argentina de Medicina, 2018
Las rickettsias son entidades clínicas emergentes y reemergentes del tipo zoonótico, de la familia Rickettsiaceae. Son un género de bacterias intracelulares obligadas transmitidas por diferentes vectores artrópodos hematófagos como garrapatas, pulgas ...
Alejandra P Sánchez, Mauricio Herrera Verduguez, Claudia Caucota, Marisa Ortega, Marianela Borgatta, Ricardo A León de la Fuente   +5 more
doaj   +2 more sources

Brazilian spotted fever in cart horses in a non-endemic area in Southern Brazil Febre maculosa brasileira em cavalo de carroceiro em área não-endêmica no Sul do Brasil

Revista Brasileira de Parasitologia Veterinária, 2010
Brazilian Spotted Fever (BSF) is an often fatal zoonosis caused by the obligate intracellular bacterium Rickettsia rickettsii. The disease is generally transmitted to humans by Amblyomma spp. ticks. Serological evidence of past infection by R. rickettsii
Marta Cristina Diniz de Oliveira Freitas, Marcelly Grycajuk, Marcelo Beltrão Molento, José Bonacin, Marcelo Bahia Labruna, Richard de Campos Pacheco, Jonas Moraes-Filho, Ivan Deconto, Alexander Welker Biondo   +8 more
doaj   +1 more source

Legionella pneumophila modulates the host cytoskeleton by an effector of transglutaminase activity

mLife, Volume 4, Issue 3, Page 232-248, June 2025.
Abstract The bacterial pathogen Legionella pneumophila delivers more than 330 effector proteins into host cells through its Dot/Icm type IV secretion system (T4SS) to facilitate its intracellular replication. A number of these effectors modulate organelle trafficking pathways to create a membrane‐bound niche called the Legionella‐containing vacuole ...
Yan Liu, Yao Liu, Zhao‐Qing Luo
wiley   +1 more source

Sufficient reproduction numbers to prevent recurrent epidemics

Methods in Ecology and Evolution, Volume 16, Issue 6, Page 1186-1200, June 2025.
Abstract Current practice in the design and evaluation of control measures in disease ecology and epidemiology, including vaccination, is largely based on reproduction numbers (RNs), which represent prognostic indices of long‐term disease transmission, both in naïve populations (basic RN) and in the presence of prior exposure or infection containment ...
Lorenzo Mari, Cristiano Trevisin, Andrea Rinaldo, Marino Gatto   +3 more
wiley   +1 more source

Febre maculosa: isolamento de Rickettsia em amostra de biópsia de pele Spotted fever: Rickettsia isolation in skin biopsy sample

Revista do Instituto de Medicina Tropical de São Paulo, 1992
Presença de Rickettsia na pele de doente de Febre Maculosa foi evidenciada por inoculação intraperitoneal em cobaio. O diagnóstico sorológico por imunoflüorescência indireta revelou diferença de título de anticorpos específicos para Rickettsia rickettsii,
Heloisa Helana B. Melles, Silvia Colombo, Marcos Vinícius da Silva   +2 more
doaj   +1 more source

Imaging Diagnosis—Sonographic Features of Bilateral Renal Lymphangiectasia in an Azotemic Dog

Veterinary Radiology &Ultrasound, Volume 66, Issue 3, May 2025.
ABSTRACT A 9‐year‐old male neutered Labrador Retriever was referred for azotemia and bilateral renomegaly. An abdominal ultrasound revealed severe bilateral renomegaly with septated subcapsular cystic anechoic lesions, consistent with renal lymphangiectasia. Despite conservative management, the patient died.
Yu Wang, Wilfried Mai, Lisa Dourmashkin, Victoria Leopardi, Hayley Amerman   +4 more
wiley   +1 more source

Study of infection by Rickettsiae of the spotted fever group in humans and ticks in an urban park located in the City of Londrina, State of Paraná, Brazil

Revista da Sociedade Brasileira de Medicina Tropical, 2011
INTRODUCTION: Spotted fevers are emerging zoonoses caused by Rickettsia species in the spotted fever group (SFG). Rickettsia rickettsii is the main etiologic agent of Brazilian spotted fever (BSF) and it is transmitted by Amblyomma spp. ticks.
Roberta Santos Toledo, Katia Tamekuni, Mauro de Freitas Silva Filho, Valeska Bender Haydu, Richard Campos Pacheco, Marcelo Bahia Labruna, John Stephen Dumler, Odilon Vidotto   +7 more
doaj   +1 more source

Multiple Introductions of the Asian Longhorned Tick (Haemaphysalis longicornis) to the United States Revealed Using Mitogenomics

Ecology and Evolution, Volume 15, Issue 4, April 2025.
The Asian longhorned tick, Haemaphysalis longicornis, is a significant global vector and threat to both agriculture and public health. Formerly known only in the Eastern Hemisphere, parthenogenetic ALT have been reported from 20 states across the eastern and central US, with a pattern of expansion suggestive of multiple distinct populations.
Zoe E. Narvaez, Andrea M. Egizi, Michael J. Yabsley, Alec T. Thompson, Mohamed Moustafa, Erika Alt, Matthew Bickerton, Kim Bjorgo, Rebecca A. Butler, Alexandra Cumbie, Gillian Eastwood, Richard C. Falco, Dina M. Fonseca, Jun Hang, Vanessa L. Harper, Nicole Lewis, Jan Lovy, Lauren P. Maestas, Thomas N. Mather, Ryo Nakao, James L. Occi, Tadhgh Rainey, Melanie Sal, Craig A. Stoops, Rebecca T. Trout‐Fryxell, Wes Watson, Nicole E. Wagner, Aihua Zheng, Perot Saelao, Dana C. Price   +29 more
wiley   +1 more source

Serologic evidence of the exposure of small mammals to spotted-fever Rickettsia and Rickettsia bellii in Minas Gerais, Brazil

Journal of Infection in Developing Countries, 2016
Introduction: Sources of pathogenic Rickettsia in wildlife are largely unknown in Brazil. In this work, potential tick vectors and seroreactivity of small mammals against four spotted-fever group Rickettsia (R. rickettsii, R. parkeri, R.
Marcella Gonçalves Coelho, Vanessa do Nascimento Ramos, Jean Ezequiel Limongi, Elba Regina Sampaio de Lemos, Alexandro Guterres, Sócrates Fraga da Costa Neto, Tatiana Rozental, Cibele Rodrigues Bonvicino, Paulo Sérgio D'Andrea, Jonas Moraes-Filho, Marcelo Bahia Labruna, Matias Pablo Juan Szabó   +11 more
doaj   +1 more source

Convergence Retraction Nystagmus Secondary to Central Nervous System Disseminated Coccidioides Immitis Infection in a Dog

Veterinary Medicine and Science, Volume 11, Issue 2, March 2025.
This report describes a canine patient with central nervous system–disseminated Coccidioides immitis infection that presented with the sole clinical abnormality of convergence‐retraction nystagmus (CRN). Brain MRI was performed with imaging characteristics, positive fungal serology and positive response to therapy confirming diagnosis.
Lydia Lovato, Trevor Moore, Laura Stainback, Scott B. Plummer, Kim E. Knowles, Jaime Sage   +5 more
wiley   +1 more source