Prevalence and molecular characterization of Toxoplasma gondii in different types of poultry in Greece, associated risk factors and co-existence with Eimeria spp.
Bioassay
Chicken
ELISA
Magnetic capture PCR
Microsatellite typing
Seroprevalence
Journal
Parasitology research
ISSN: 1432-1955
Titre abrégé: Parasitol Res
Pays: Germany
ID NLM: 8703571
Informations de publication
Date de publication:
Jan 2023
Jan 2023
Historique:
received:
26
07
2022
accepted:
18
10
2022
pubmed:
30
10
2022
medline:
10
1
2023
entrez:
29
10
2022
Statut:
ppublish
Résumé
Toxoplasma gondii is a protozoan parasite of public health importance, infecting all warm-blooded animals, including chickens. Undercooked chicken meat or relevant products such as sausages could lead to human infections. In free-range, organic and slow-growth farming systems where the susceptibility period for chickens is extended, more knowledge about potential risk factors is essential. This study is the first seroepidemiological survey in different regions and types of chicken farms in Greece, using a major tachyzoite surface antigen-based ELISA (TgSAG1), combined with magnetic-capture PCR (mc-PCR) and bioassay for the isolation of strains from the chickens' tissues. Potential risk factors for T. gondii infection in these hosts were also investigated. Additionally, the co-existence of T. gondii and Eimeria spp. infections was assessed to elucidate epidemiological links between these two protozoan infections. Overall T. gondii seroprevalence was 9.5%. Of the backyard chickens sampled, 41.2% were seropositive and 70% of the organic and free-range layer farms had at least one T. gondii seropositive hen. No serologically positive broilers were found, although mc-PCR revealed a positive sample, highlighting the importance of accurate early-infection direct detection of T. gondii infections to ensure public health. T. gondii isolates obtained by mouse bioassay were genotyped. All belonged to type II (ToxoDB#3) as confirmed also by microsatellite typing. Production system, type of nutrition, and feeding system automation were identified as the most significant risk factors, while no association was found between the presence of cats and T. gondii seropositivity as calculated on both a farm level and per individual bird sampled.
Identifiants
pubmed: 36308531
doi: 10.1007/s00436-022-07701-6
pii: 10.1007/s00436-022-07701-6
pmc: PMC9816277
doi:
Substances chimiques
Antibodies, Protozoan
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
97-111Subventions
Organisme : Alexander S. Onassis Public Benefit Foundation
ID : F ZL 007-1/2015-2016
Organisme : Horizon 2020
ID : 773830
Informations de copyright
© 2022. The Author(s).
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