Results 101 to 110 of about 7,411 (207)

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

Development of a duplex real-time PCR for the detection of Rickettsia spp. and typhus group rickettsia in clinical samples. [PDF]

, 2011
Molecular diagnosis using real-time polymerase chain reaction (PCR) may allow earlier diagnosis of rickettsiosis. We developed a duplex real-time PCR that amplifies (1) DNA of any rickettsial species and (2) DNA of both typhus group rickettsia, that is ...
Cometta, A., Giulieri, S., Greub, G., Jaton, K., Trellu, L.T.   +4 more
core   +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

Primary isolation of spotted fever group rickettsiae from Amblyomma cooperi collected from Hydrochaeris hydrochaeris in Brazil

Memorias do Instituto Oswaldo Cruz, 1996
This paper reports the first isolation of a spotted fever group rickettsia from an Amblyomma cooperi ixodid collected from a capybara (Hydrochaeris hydrochaeris) in an endemic area of spotted fever in the County of Pedreira, State of São Paulo, Brazil ...
Elba Regina Sampaio de Lemos, Heloísa Helena Barbosa Melles, Sílvia Colombo, Raimundo Diogo Machado, José Rodrigues Coura, Maria Angélica Arpon Guimarães, Selênio R Sanseverino, Aline Moura   +7 more
doaj   +1 more source

tRNA signatures reveal polyphyletic origins of streamlined SAR11 genomes among the alphaproteobacteria [PDF]

, 2013
Phylogenomic analyses are subject to bias from compositional convergence and noise from horizontal gene transfer (HGT). Compositional convergence is a likely cause of controversy regarding phylogeny of the SAR11 group of Alphaproteobacteria that have ...
Amrine, Katherine C. H., Ardell, David H., Swingley, Wesley D.   +2 more
core   +4 more sources

A review of the genus Rickettsia in Central America

Research and Reports in Tropical Medicine, 2018
Sergio E Bermúdez C,1 Adriana Troyo2 1Department of Medical Entomology, Gorgas Memorial Institute for Health Research, Panamá; 2Vector Research Laboratory, Tropical Diseases Research Center, Faculty of Microbiology, University of Costa Rica,
Bermúdez C SE, Troyo A
doaj  

Rickettsioses in Latin America, Caribbean, Spain and Portugal [PDF]

, 2011
Data on genus and infectious by Rickettsia were retrospectively compiled from the critical review literature regarding all countries in Latin America, Caribbean islands, Portugal and Spain.
Abarca, Katia, Bermudez, Sergio, De Sousa, Rita, Dolz, Gaby, Labruna, Marcelo B., Mattar V, Salim, Nava, Santiago, Oteo, Jose, Romero, Luis, Venzal, Jose M., Zavala-Castro, Jorge   +10 more
core   +1 more source

Ixodes brunneus (Acari: Ixodidae) from Two Bird Hosts: A New Michigan Tick [PDF]

, 2017
The tick Ixodes brunneus Koch (Acari: Ixodidae) is reported for the first time in Michigan from two bird hosts at two locations in the lower peninsula.
Hamer, Sarah A, Keith, Brenda S, Keith, Richard S, Scharf, William C   +3 more
core   +2 more sources

Antibodies against rickettsiae from spotted fever groups in horses from two mesoregions in the state of Santa Catarina, Brazil

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2013
Bacteria of the Rickettsia genus are agents of Brazilian Spotted Fever (BSF), a zoonotic disease which is difficult to diagnose, evolves quickly and can result in death. Antibodies against Rickettsia spp.
A.P. Medeiros, A.B. Moura, A.P. Souza, V. Bellato, A.A. Sartor, A. Vieira-Neto, J. Moraes-Filho, M.B. Labruna   +7 more
doaj   +1 more source

Intranuclear growth of Rickettsia rickettsii [PDF]

Journal of Bacteriology, 1968
W, Burgdorfer, R L, Anacker, R G, Bird, D S, Bertram   +3 more
openaire   +2 more sources