Shedding light on risk: Seroprevalence of Q fever among farm animals and workers in Ecuador

Q fever, caused by the bacterium Coxiella burnetii, is a zoonotic disease that has been largely overlooked despite presenting significant risks to both animal and public health. Although well studied in some countries, in most countries in Latin America, there's a lack of information on C. burnetii...

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Main Authors: Guerrero-Freire, Mónica Salomé, Ledesma, Yanua, Echeverria, Gustavo, Blanco, Federico Carlos, Waard, Jacobus H. de
Format: Artículo
Language:Inglés
Published: Elsevier 2025
Subjects:
Online Access:http://hdl.handle.net/20.500.12123/21864
https://www.sciencedirect.com/science/article/pii/S2352771424002659
https://doi.org/10.1016/j.onehlt.2024.100939
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author Guerrero-Freire, Mónica Salomé
Ledesma, Yanua
Echeverria, Gustavo
Blanco, Federico Carlos
Waard, Jacobus H. de
author_browse Blanco, Federico Carlos
Echeverria, Gustavo
Guerrero-Freire, Mónica Salomé
Ledesma, Yanua
Waard, Jacobus H. de
author_facet Guerrero-Freire, Mónica Salomé
Ledesma, Yanua
Echeverria, Gustavo
Blanco, Federico Carlos
Waard, Jacobus H. de
author_sort Guerrero-Freire, Mónica Salomé
collection INTA Digital
description Q fever, caused by the bacterium Coxiella burnetii, is a zoonotic disease that has been largely overlooked despite presenting significant risks to both animal and public health. Although well studied in some countries, in most countries in Latin America, there's a lack of information on C. burnetii infection, its prevalence, and its impact on both livestock and human populations. To address this gap, we conducted a serosurvey among farm workers, cattle, sheep, and dogs on two dairy farms in Ecuador using a commercial ELISA kit. Additionally, we conducted a case-control study in cattle to investigate the association between C. burnetii infection and abortion. The findings revealed that 18 % of farm workers, 30 % of dogs, 25 % of cattle and 2 % of sheep tested positive for Q fever antibodies. Interestingly, no significant association between C. burnetii infection and abortion was observed in cattle (p < 0.05) but a high Neospora caninum seroprevalence indicated a strong link to abortion due to this parasite infection. The results highlight the presence of Q fever in both humans and animals on the surveyed farms, with farm dogs showing the highest seroprevalence. A point of concern arises from the significant prevalence of antibodies detected among farm workers, suggesting a potential history of unconfirmed symptomatic respiratory infections caused by a C. burnetii infection. However, further investigations are necessary to better understand the infection dynamics and its potential implications for public and animal health.
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spelling INTA218642025-04-01T12:46:45Z Shedding light on risk: Seroprevalence of Q fever among farm animals and workers in Ecuador Guerrero-Freire, Mónica Salomé Ledesma, Yanua Echeverria, Gustavo Blanco, Federico Carlos Waard, Jacobus H. de Fiebre Q Ganado Salud pública Obreros Agrícolas Ecuador Coxiella burnetii Salud Humana Sanidad Animal Q fever Livestock Public health Agricultural Workers Human Health Animal Health Seroprevalencia Seroprevalence Q fever, caused by the bacterium Coxiella burnetii, is a zoonotic disease that has been largely overlooked despite presenting significant risks to both animal and public health. Although well studied in some countries, in most countries in Latin America, there's a lack of information on C. burnetii infection, its prevalence, and its impact on both livestock and human populations. To address this gap, we conducted a serosurvey among farm workers, cattle, sheep, and dogs on two dairy farms in Ecuador using a commercial ELISA kit. Additionally, we conducted a case-control study in cattle to investigate the association between C. burnetii infection and abortion. The findings revealed that 18 % of farm workers, 30 % of dogs, 25 % of cattle and 2 % of sheep tested positive for Q fever antibodies. Interestingly, no significant association between C. burnetii infection and abortion was observed in cattle (p < 0.05) but a high Neospora caninum seroprevalence indicated a strong link to abortion due to this parasite infection. The results highlight the presence of Q fever in both humans and animals on the surveyed farms, with farm dogs showing the highest seroprevalence. A point of concern arises from the significant prevalence of antibodies detected among farm workers, suggesting a potential history of unconfirmed symptomatic respiratory infections caused by a C. burnetii infection. However, further investigations are necessary to better understand the infection dynamics and its potential implications for public and animal health. Instituto de Biotecnología Fil: Guerrero-Freire, Mónica Salomé. Universidad de las Américas. Facultad de Ciencias de la Salud. One Health Research Group; Ecuador Fil: Guerrero-Freire, Mónica Salomé. Universidad de Buenos Aires (UBA). Facultad de Ciencias Veterinarias. Programa de Doctorado; Argentina Fil: Ledesma, Yanua. Universidad de las Américas. Facultad de Ciencias de la Salud. One Health Research Group; Ecuador Fil: Ledesma, Yanua. Universidad de Buenos Aires (UBA). Facultad de Ciencias Veterinarias. Programa de Doctorado; Argentina Fil: Echeverria, Gustavo. Universidad de Buenos Aires (UBA). Facultad de Ciencias Veterinarias. Programa de Doctorado; Argentina Fil: Echeverria, Gustavo. Universidad Central del Ecuador. Instituto de Investigación en Zoonosis-CIZ; Ecuador Fil: Echeverria, Gustavo. BioGENA. División Investigación y Desarrollo; Ecuador Fil: Blanco, Federico Carlos. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular (IABIMO); Argentina Fil: Blanco, Federico Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto de Agrobiotecnología y Biología Molecular (IABIMO); Argentina Fil: Waard, Jacobus H. de. Universidad de las Américas. Facultad de Ciencias de la Salud. One Health Research Group; Ecuador 2025-04-01T12:35:16Z 2025-04-01T12:35:16Z 2024-12 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/21864 https://www.sciencedirect.com/science/article/pii/S2352771424002659 2352-7714 https://doi.org/10.1016/j.onehlt.2024.100939 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Ecuador .......... (nation) (World, South America) 1000051 Elsevier One Health 19 : 100939 (Diciembre 2024)
spellingShingle Fiebre Q
Ganado
Salud pública
Obreros Agrícolas
Ecuador
Coxiella burnetii
Salud Humana
Sanidad Animal
Q fever
Livestock
Public health
Agricultural Workers
Human Health
Animal Health
Seroprevalencia
Seroprevalence
Guerrero-Freire, Mónica Salomé
Ledesma, Yanua
Echeverria, Gustavo
Blanco, Federico Carlos
Waard, Jacobus H. de
Shedding light on risk: Seroprevalence of Q fever among farm animals and workers in Ecuador
title Shedding light on risk: Seroprevalence of Q fever among farm animals and workers in Ecuador
title_full Shedding light on risk: Seroprevalence of Q fever among farm animals and workers in Ecuador
title_fullStr Shedding light on risk: Seroprevalence of Q fever among farm animals and workers in Ecuador
title_full_unstemmed Shedding light on risk: Seroprevalence of Q fever among farm animals and workers in Ecuador
title_short Shedding light on risk: Seroprevalence of Q fever among farm animals and workers in Ecuador
title_sort shedding light on risk seroprevalence of q fever among farm animals and workers in ecuador
topic Fiebre Q
Ganado
Salud pública
Obreros Agrícolas
Ecuador
Coxiella burnetii
Salud Humana
Sanidad Animal
Q fever
Livestock
Public health
Agricultural Workers
Human Health
Animal Health
Seroprevalencia
Seroprevalence
url http://hdl.handle.net/20.500.12123/21864
https://www.sciencedirect.com/science/article/pii/S2352771424002659
https://doi.org/10.1016/j.onehlt.2024.100939
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