Rickettsia parkeri in Argentina
Emerging Infectious Diseases, 2008 Clinical reports of an eschar-associated rickettsiosis in the Paraná River Delta of Argentina prompted an evaluation of Amblyomma triste ticks in this region. When evaluated by PCR, 17 (7.6%) of 223 questing adult A.
Santiago Nava +5 more
doaj +2 more sources
Epidemiological aspects of the Brazilian spotted fever: seasonal activity of ticks collected in an endemic area in São Paulo, Brazil [PDF]
Revista da Sociedade Brasileira de Medicina Tropical, 1997 Ticks were collected from vegetation and animals at monthly intervals during one year (1993-1994) in an endemic area of Brazilian spotted fever in the County of Pedreira, State of São Paulo.
Elba R.S. de Lemos +6 more
doaj +2 more sources
Pesquisa de Rickettsia spp. em carrapatos Amblyomma dubitatum Neumann 1899 e Amblyomma triste Koch 1844, provenientes do Brasil e Uruguai, respectivamente [PDF]
, 2015 Com o objetivo de obtermos isolados de Rickettsia spp. para confirmar as evidências sobre o papel do A. dubitatum e do A. triste na transmissão de riquétsia do GFM no Brasil e Uruguai, respectivamente, realizou-se em áreas endêmicas para febre maculosa ...
Richard de Campos Pacheco +1 more
openaire +2 more sources
Annals of the New York Academy of Sciences, 2008 This study investigated the development of resistance in guinea pigs to nymphs of Amblyomma triste ticks after repeated infestations. Guinea pigs were infested thrice, at 30‐day intervals, with 30 nymphs of A. triste per animal per infestation. Acquisition of resistance was evaluated by determining: nymph yielding rate, engorgement period, and weight ...
Otavio, Flavio S. +1 more
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Ticks and Tick-borne Diseases, 2014 In the present study, we report the first in vitro isolation and infection intensity of Rickettsia parkeri in Amblyomma triste ticks from Argentina. No genetic differences in the molecular targets evaluated were found between R. parkeri isolates from Argentina and those R. parkeri isolates reported in Uruguay and Brazil, both obtained from A.
Monje, Lucas Daniel +4 more
openaire +4 more sources
Avaliação da infecção por Rickettsia spp. em Amblyomma triste Koch (Acari: Ixodidae) e em algumas espécies de Ornithonyssus Sambon (Acari: Macronyssidae) [PDF]
, 2015 O gênero Rickettsia compreende bactérias intracelulares obrigatórias e há por enquanto 22 espécies que, comprovadamente, são patogênicas ao homem. A transmissão da maioria das espécies de riquétsias está associada a carrapatos, mas também podem ser ...
Bastos, Fernanda Aparecida Nieri +1 more
openaire +2 more sources
Investigação da infecção pela bactéria Rickettsia parkeri em carrapatos Amblyomma triste no Estado de São Paulo: isolamento e caracterização molecular da bactéria [PDF]
, 2015 Em janeiro de 2005, foram coletados 31 carrapatos adultos da espécie Amblyomma triste em uma propriedade rural da CESP, localizada no município de Paulicéia, Estado de São Paulo.
Iara Silveira, Silveira, Iara
openaire +2 more sources
Reproductive incompatibility between Amblyomma maculatum (Acari: Ixodidae) group ticks from two disjunct geographical regions within the USA [PDF]
Experimental and Applied Acarology, 2020 Michelle E J Allerdice +2 more
exaly +2 more sources
The role of basophils in acquired protective immunity to tick infestation
Parasite Immunology, Volume 43, Issue 5, May 2021., 2021 Abstract Ticks are blood‐feeding ectoparasites that transmit a variety of pathogens to host animals and humans, causing severe infectious diseases such as Lyme disease. In a certain combination of animal and tick species, tick infestation elicits acquired immunity against ticks in the host, which can reduce the ability of ticks to feed on blood and to ...
Soichiro Yoshikawa +3 more
wiley +1 more source
Búsqueda de Borrelia spp. en garrapatas del género Amblyomma de Argentina [PDF]
, 2021 Objetive. The aim of the present study was to detect Borrelia spp. in different species of ticks of the genus Amblyomma from Argentina. Materials and methods.
L.Tarragona, Evelina +13 more
core +1 more source