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Please use this identifier to cite or link to this item: http://hdl.handle.net/10400.18/641

Título: Detection of Rickettsia conorii strains in Portuguese dogs (Canis familiaris)
Autor: Alexandre, Nuno
Santos, AS
Bacellar, F
Boinas, FJ
Núncio, MS
De Sousa, R
Palavras-chave: Rickettsia
Cães
R. conorii Malish strain
R. conorii Israeli tick typhus strain
Dog
Mediterranean spotted fever
Sentinel
Estudos de Vectores e Doenças Infecciosas
Issue Date: Jun-2011
Editora: Elsevier
Citação: Ticks Tick Borne Dis. 2011 Jun;2(2):119-22. Epub 2011 Apr 16
Resumo: This study reports a serological and molecular survey on the spotted fever group Rickettsia found in a group of 51 dogs with suspected tick-borne illness from the south of Portugal. Additionally, a prevalence of IgG antibodies to R. conorii was also estimated in a group of 400 healthy dogs from the same region. In the group of healthy dogs, the immunofluorescence test revealed that 154 (38.5%) of the 400 dogs had IgG antibodies reactive with R. conorii. The highest proportion of dogs (45%) with R. conorii antibodies was found in blood samples collected from October to December. Among the group suspected with tick-borne illness, 35 (62%) dogs showed to be seroreactive (IgG≥128) for antibodies against R. conorii, and the analysis of PCR-positive amplicons revealed that 5 dogs were infected with R. conorii Malish and 2 dogs were infected with R. conorii Israeli tick typhus strain. There was a higher prevalence of antibodies to R. conorii in the group of sick dogs, and the detection of R. conorii DNA in blood samples from this group points to their potential role as a reservoir and sentinel host helping to evaluate and characterize the distribution of circulating rickettsial strains.
Arbitragem científica: yes
URI: http://hdl.handle.net/10400.18/641
ISSN: 1877-959X
Versão do Editor: http://www.sciencedirect.com/science/article/pii/S1877959X11000239
Appears in Collections:DDI - Artigos em revistas internacionais

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