Belgian Cross-Sectional Epidemiological Study on Zoonotic Avian <i>Chlamydia</i> spp. in Chickens

<i>Chlamydia psittaci</i>, <i>Chlamydia gallinacea,</i> and <i>Chlamydia abortus</i> are the most common <i>Chlamydia</i> spp. in chickens and have a confirmed or suggested zoonotic potential. No recent data are available on their prevalence and impact...

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Main Authors: Anne De Meyst, Pieter De Clercq, Jelmer Porrez, Tom Geens, Lutgart Braeckman, Sander Ouburg, Servaas A. Morré, Daisy Vanrompay
Format: Article
Language:English
Published: MDPI AG 2024-01-01
Series:Microorganisms
Subjects:
Online Access:https://www.mdpi.com/2076-2607/12/1/193
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author Anne De Meyst
Pieter De Clercq
Jelmer Porrez
Tom Geens
Lutgart Braeckman
Sander Ouburg
Servaas A. Morré
Daisy Vanrompay
author_facet Anne De Meyst
Pieter De Clercq
Jelmer Porrez
Tom Geens
Lutgart Braeckman
Sander Ouburg
Servaas A. Morré
Daisy Vanrompay
author_sort Anne De Meyst
collection DOAJ
description <i>Chlamydia psittaci</i>, <i>Chlamydia gallinacea,</i> and <i>Chlamydia abortus</i> are the most common <i>Chlamydia</i> spp. in chickens and have a confirmed or suggested zoonotic potential. No recent data are available on their prevalence and impact in the Belgian chicken industry or in the recreational chicken branch. Therefore, a cross-sectional epidemiological study was executed where samples were collected from both factory-farmed and backyard chickens. More specifically, pharyngeal chicken swabs were obtained from 20 chicken farms, 5 chicken abattoirs, and 38 different backyard locations and were analyzed using species-specific Polymerase Chain Reactions (PCRs) for the presence of the three avian <i>Chlamydia</i> spp. To investigate their zoonotic potential, samples were simultaneously collected from 54 backyard chicken caretakes and 37 professional chicken caretakers or abattoir employees and analyzed using species-specific PCRs as well. This study confirmed the presence of DNA of all three <i>Chlamydia</i> species in both the chicken industry and backyard settings. <i>Chlamydia psittaci</i> was the most prevalent in the industry chickens (11.0%), whereas <i>Chlamydia gallinacea</i> was the dominant species in the backyard chickens (14.5%). <i>Chlamydia abortus</i> infections were more common in the commercial chickens (9.0%) compared to the backyard chickens (2.6%). The DNA of all three species was also detected in humans (3.9% <i>Chlamydia psittaci</i>, 2.9% <i>Chlamydia gallinacea,</i> and 1.0% <i>Chlamydia abortus</i>).
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spelling doaj.art-118dc6e2097740f2b187e6e67cbda3652024-01-29T14:06:55ZengMDPI AGMicroorganisms2076-26072024-01-0112119310.3390/microorganisms12010193Belgian Cross-Sectional Epidemiological Study on Zoonotic Avian <i>Chlamydia</i> spp. in ChickensAnne De Meyst0Pieter De Clercq1Jelmer Porrez2Tom Geens3Lutgart Braeckman4Sander Ouburg5Servaas A. Morré6Daisy Vanrompay7Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, BelgiumDepartment of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, BelgiumDepartment of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, BelgiumResearch and Analytics, Liantis, 8200 Bruges, BelgiumDepartment of Public Health and Primary Care, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, BelgiumResearch & Development, Microbe&Lab BV, 1105 AG Amsterdam, The NetherlandsResearch & Development, Microbe&Lab BV, 1105 AG Amsterdam, The NetherlandsDepartment of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium<i>Chlamydia psittaci</i>, <i>Chlamydia gallinacea,</i> and <i>Chlamydia abortus</i> are the most common <i>Chlamydia</i> spp. in chickens and have a confirmed or suggested zoonotic potential. No recent data are available on their prevalence and impact in the Belgian chicken industry or in the recreational chicken branch. Therefore, a cross-sectional epidemiological study was executed where samples were collected from both factory-farmed and backyard chickens. More specifically, pharyngeal chicken swabs were obtained from 20 chicken farms, 5 chicken abattoirs, and 38 different backyard locations and were analyzed using species-specific Polymerase Chain Reactions (PCRs) for the presence of the three avian <i>Chlamydia</i> spp. To investigate their zoonotic potential, samples were simultaneously collected from 54 backyard chicken caretakes and 37 professional chicken caretakers or abattoir employees and analyzed using species-specific PCRs as well. This study confirmed the presence of DNA of all three <i>Chlamydia</i> species in both the chicken industry and backyard settings. <i>Chlamydia psittaci</i> was the most prevalent in the industry chickens (11.0%), whereas <i>Chlamydia gallinacea</i> was the dominant species in the backyard chickens (14.5%). <i>Chlamydia abortus</i> infections were more common in the commercial chickens (9.0%) compared to the backyard chickens (2.6%). The DNA of all three species was also detected in humans (3.9% <i>Chlamydia psittaci</i>, 2.9% <i>Chlamydia gallinacea,</i> and 1.0% <i>Chlamydia abortus</i>).https://www.mdpi.com/2076-2607/12/1/193<i>Chlamydia</i>chickenzoonosispsittacosis<i>Chlamydia psittaci</i><i>Chlamydia gallinacea</i>
spellingShingle Anne De Meyst
Pieter De Clercq
Jelmer Porrez
Tom Geens
Lutgart Braeckman
Sander Ouburg
Servaas A. Morré
Daisy Vanrompay
Belgian Cross-Sectional Epidemiological Study on Zoonotic Avian <i>Chlamydia</i> spp. in Chickens
Microorganisms
<i>Chlamydia</i>
chicken
zoonosis
psittacosis
<i>Chlamydia psittaci</i>
<i>Chlamydia gallinacea</i>
title Belgian Cross-Sectional Epidemiological Study on Zoonotic Avian <i>Chlamydia</i> spp. in Chickens
title_full Belgian Cross-Sectional Epidemiological Study on Zoonotic Avian <i>Chlamydia</i> spp. in Chickens
title_fullStr Belgian Cross-Sectional Epidemiological Study on Zoonotic Avian <i>Chlamydia</i> spp. in Chickens
title_full_unstemmed Belgian Cross-Sectional Epidemiological Study on Zoonotic Avian <i>Chlamydia</i> spp. in Chickens
title_short Belgian Cross-Sectional Epidemiological Study on Zoonotic Avian <i>Chlamydia</i> spp. in Chickens
title_sort belgian cross sectional epidemiological study on zoonotic avian i chlamydia i spp in chickens
topic <i>Chlamydia</i>
chicken
zoonosis
psittacosis
<i>Chlamydia psittaci</i>
<i>Chlamydia gallinacea</i>
url https://www.mdpi.com/2076-2607/12/1/193
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