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Prevalence and incidence of vector-borne pathogens in unprotected dogs in two Brazilian regions

BACKGROUND: Various vector-borne pathogens (VBPs) affect dogs worldwide, with their diversity and force of infection being usually higher in the tropics. Cross-sectional studies have been conducted to investigate the prevalence of VBPs in dogs, but data from longitudinal studies are scarce. Herein,...

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Autores principales: Dantas-Torres, Filipe, Figueredo, Luciana Aguiar, Sales, Kamila Gaudêncio da Silva, Miranda, Débora Elienai de Oliveira, Alexandre, Joanna Lúcia de Almeida, da Silva, Yury Yzabella, da Silva, Lidiane Gomes, Valle, Guilherme Ribeiro, Ribeiro, Vitor Márcio, Otranto, Domenico, Deuster, Katrin, Pollmeier, Matthias, Altreuther, Gertraut
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7171771/
https://www.ncbi.nlm.nih.gov/pubmed/32312297
http://dx.doi.org/10.1186/s13071-020-04056-8
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author Dantas-Torres, Filipe
Figueredo, Luciana Aguiar
Sales, Kamila Gaudêncio da Silva
Miranda, Débora Elienai de Oliveira
Alexandre, Joanna Lúcia de Almeida
da Silva, Yury Yzabella
da Silva, Lidiane Gomes
Valle, Guilherme Ribeiro
Ribeiro, Vitor Márcio
Otranto, Domenico
Deuster, Katrin
Pollmeier, Matthias
Altreuther, Gertraut
author_facet Dantas-Torres, Filipe
Figueredo, Luciana Aguiar
Sales, Kamila Gaudêncio da Silva
Miranda, Débora Elienai de Oliveira
Alexandre, Joanna Lúcia de Almeida
da Silva, Yury Yzabella
da Silva, Lidiane Gomes
Valle, Guilherme Ribeiro
Ribeiro, Vitor Márcio
Otranto, Domenico
Deuster, Katrin
Pollmeier, Matthias
Altreuther, Gertraut
author_sort Dantas-Torres, Filipe
collection PubMed
description BACKGROUND: Various vector-borne pathogens (VBPs) affect dogs worldwide, with their diversity and force of infection being usually higher in the tropics. Cross-sectional studies have been conducted to investigate the prevalence of VBPs in dogs, but data from longitudinal studies are scarce. Herein, we assessed the prevalence and the year-crude incidence (YCI) of Leishmania spp. and other VBPs in privately-owned dogs from two geographical regions of Brazil. METHODS: A total of 823 dogs were initially screened for Leishmania spp. by both serology and polymerase chain reaction (PCR). From the negatives, 307 (103 from São Joaquim de Bicas, Minas Gerais, and 204 from Goiana, Pernambuco) were randomly selected for the longitudinal study. These dogs were tested for various VBPs at baseline, after 8 and 12 months. RESULTS: Out of 823 dogs initially screened, 131 (15.9%) were positive for Leishmania spp. Out of the 307 dogs enrolled in the longitudinal study, 120 (39.1%) were lost for different reasons (e.g. animal death, owner decision, and lost to follow-up). In São Joaquim de Bicas, the baseline prevalence and YCI were as follows: 16.5% and 7.1% for Anaplasma spp.; 81.6% and 100% for Babesia spp.; 0% and 1.3% (only one faint positive) for Dirofilaria immitis; 37.9% and 22.9% for Ehrlichia spp.; 19.5% and 43.8% for Leishmania spp. In Goiana, the baseline prevalence and YCI were as follows: 45.1% and 38.3% for Anaplasma spp.; 79.9% and 96.0% for Babesia spp.; 36.3% and 39.8% for D. immitis; 64.7% and 58.5% for Ehrlichia spp.; 14.7% and 19.6% for Leishmania spp. Anti-Borrelia burgdorferi antibodies were not detected in any of the samples tested herein. The prevalence and YCI of Anaplasma spp., D. immitis and Ehrlichia spp. were significantly higher in Goiana. In contrast, the YCI of Leishmania spp. infection was significantly higher in São Joaquim de Bicas. CONCLUSIONS: We confirmed a high prevalence and YCI of various VBPs among privately-owned dogs in two geographical regions of Brazil. Our data also indicate that the risk of infection varies significantly for individual VBPs and between the regions, which may be related to several factors that are still poorly understood. [Image: see text]
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spelling pubmed-71717712020-04-24 Prevalence and incidence of vector-borne pathogens in unprotected dogs in two Brazilian regions Dantas-Torres, Filipe Figueredo, Luciana Aguiar Sales, Kamila Gaudêncio da Silva Miranda, Débora Elienai de Oliveira Alexandre, Joanna Lúcia de Almeida da Silva, Yury Yzabella da Silva, Lidiane Gomes Valle, Guilherme Ribeiro Ribeiro, Vitor Márcio Otranto, Domenico Deuster, Katrin Pollmeier, Matthias Altreuther, Gertraut Parasit Vectors Short Report BACKGROUND: Various vector-borne pathogens (VBPs) affect dogs worldwide, with their diversity and force of infection being usually higher in the tropics. Cross-sectional studies have been conducted to investigate the prevalence of VBPs in dogs, but data from longitudinal studies are scarce. Herein, we assessed the prevalence and the year-crude incidence (YCI) of Leishmania spp. and other VBPs in privately-owned dogs from two geographical regions of Brazil. METHODS: A total of 823 dogs were initially screened for Leishmania spp. by both serology and polymerase chain reaction (PCR). From the negatives, 307 (103 from São Joaquim de Bicas, Minas Gerais, and 204 from Goiana, Pernambuco) were randomly selected for the longitudinal study. These dogs were tested for various VBPs at baseline, after 8 and 12 months. RESULTS: Out of 823 dogs initially screened, 131 (15.9%) were positive for Leishmania spp. Out of the 307 dogs enrolled in the longitudinal study, 120 (39.1%) were lost for different reasons (e.g. animal death, owner decision, and lost to follow-up). In São Joaquim de Bicas, the baseline prevalence and YCI were as follows: 16.5% and 7.1% for Anaplasma spp.; 81.6% and 100% for Babesia spp.; 0% and 1.3% (only one faint positive) for Dirofilaria immitis; 37.9% and 22.9% for Ehrlichia spp.; 19.5% and 43.8% for Leishmania spp. In Goiana, the baseline prevalence and YCI were as follows: 45.1% and 38.3% for Anaplasma spp.; 79.9% and 96.0% for Babesia spp.; 36.3% and 39.8% for D. immitis; 64.7% and 58.5% for Ehrlichia spp.; 14.7% and 19.6% for Leishmania spp. Anti-Borrelia burgdorferi antibodies were not detected in any of the samples tested herein. The prevalence and YCI of Anaplasma spp., D. immitis and Ehrlichia spp. were significantly higher in Goiana. In contrast, the YCI of Leishmania spp. infection was significantly higher in São Joaquim de Bicas. CONCLUSIONS: We confirmed a high prevalence and YCI of various VBPs among privately-owned dogs in two geographical regions of Brazil. Our data also indicate that the risk of infection varies significantly for individual VBPs and between the regions, which may be related to several factors that are still poorly understood. [Image: see text] BioMed Central 2020-04-21 /pmc/articles/PMC7171771/ /pubmed/32312297 http://dx.doi.org/10.1186/s13071-020-04056-8 Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
spellingShingle Short Report
Dantas-Torres, Filipe
Figueredo, Luciana Aguiar
Sales, Kamila Gaudêncio da Silva
Miranda, Débora Elienai de Oliveira
Alexandre, Joanna Lúcia de Almeida
da Silva, Yury Yzabella
da Silva, Lidiane Gomes
Valle, Guilherme Ribeiro
Ribeiro, Vitor Márcio
Otranto, Domenico
Deuster, Katrin
Pollmeier, Matthias
Altreuther, Gertraut
Prevalence and incidence of vector-borne pathogens in unprotected dogs in two Brazilian regions
title Prevalence and incidence of vector-borne pathogens in unprotected dogs in two Brazilian regions
title_full Prevalence and incidence of vector-borne pathogens in unprotected dogs in two Brazilian regions
title_fullStr Prevalence and incidence of vector-borne pathogens in unprotected dogs in two Brazilian regions
title_full_unstemmed Prevalence and incidence of vector-borne pathogens in unprotected dogs in two Brazilian regions
title_short Prevalence and incidence of vector-borne pathogens in unprotected dogs in two Brazilian regions
title_sort prevalence and incidence of vector-borne pathogens in unprotected dogs in two brazilian regions
topic Short Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7171771/
https://www.ncbi.nlm.nih.gov/pubmed/32312297
http://dx.doi.org/10.1186/s13071-020-04056-8
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