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Seroepidemiological survey of Leishmania infantum infection in dogs from northeastern Portugal

Title
Seroepidemiological survey of Leishmania infantum infection in dogs from northeastern Portugal
Type
Article in International Scientific Journal
Year
2011
Authors
Susana Sousa
(Author)
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Ana Patricia Lopes
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Luis Cardoso
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Ricardo Silvestre
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Henk Schallig
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Steven G Reed
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Anabela Cordeiro da Silva
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Journal
Title: Acta TropicaImported from Authenticus Search for Journal Publications
Vol. 120 No. 1-2
Pages: 82-87
ISSN: 0001-706X
Publisher: Elsevier
Indexing
Publicação em ISI Web of Science ISI Web of Science
Pubmed / Medline
Scientific classification
FOS: Medical and Health sciences > Health sciences
CORDIS: Health sciences
Other information
Authenticus ID: P-002-M4K
Resumo (PT): Northeastern Portugal is a region where canine leishmaniasis (CanL) is endemic. In this study, a sero-epidemiological survey was conducted in 654 dogs from that geographical area. Serum samples were evaluated by the direct agglutination test (DAT) and also by enzyme-linked immunosorbent assay (ELISA) using five different defined antigens. Seroprevalence of infection was 21.3% based on the assumption that seropositive animals were positive for at least three tests. A high degree of agreement was found between DAT and LAM-ELISA (89%; kappa value [κ] = 0.67). A statistically significant difference (p < 0.05) of seropositivity was found between adult (23.4%) and juvenile dogs (12.2%), apparently healthy (14.8%) and sick dogs (40.2%), vaccinated (19.7%) and non-vaccinated (41.2%) animals, seropositive (26.9%) and seronegative (18.0%) for Toxoplasma gondii, living in rural (18.5%) or urban (32.6%) areas, and between animals living exclusively outdoors (18.2%) and those living in a mixed habitat (27.5%). Risk factors for canine Leishmania infection, as defined by multiple logistic regression analysis, were of clinical status (odds ratio [OR] = 3.1) and Toxoplasma infection (OR = 1.5). <br> <br> Keywords Leishmania infantum; Dogs; Seroprevalence; DAT; ELISA <br> <a target="_blank" href="http://www.sciencedirect.com/science/article/pii/S0001706X11001860"> Texto integral </a> <br>
Abstract (EN): Northeastern Portugal is a region where canine leishmaniasis (CanL) is endemic. In this study, a seroepidemiological survey was conducted in 654 dogs from that geographical area. Serum samples were evaluated by the direct agglutination test (DAT) and also by enzyme-linked immunosorbent assay (ELISA) using five different defined antigens. Seroprevalence of infection was 21.3% based on the assumption that seropositive animals were positive for at least three tests. A high degree of agreement was found between DAT and LAM-ELISA (89%; kappa value [kappa]= 0.67). A statistically significant difference (p < 0.05) of seropositivity was found between adult (23.4%) and juvenile dogs (12.2%), apparently healthy (14.8%) and sick dogs (40.2%), vaccinated (19.7%) and non-vaccinated (41.2%) animals, seropositive (26.9%) and seronegative (18.0%) for Toxoplasma gondii, living in rural (18.5%) or urban (32.6%) areas, and between animals living exclusively outdoors (18.2%) and those living in a mixed habitat (27.5%). Risk factors for canine Leishmania infection, as defined by multiple logistic regression analysis, were of clinical status (odds ratio [OR] = 3.1) and Toxoplasma infection (OR= 1.5).
Language: English
Type (Professor's evaluation): Scientific
No. of pages: 6
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