Migratory Wild Birds as Potential Long-Distance Transmitters of IToxoplasma gondii/I Infection

Toxoplasma gondii is a worldwide distributed zoonotic protozoan capable of infecting a wide range of mammals (including humans) and birds as intermediate hosts. Migratory wild birds, through interconnecting countries along their flyways, can play a role in the spatial spread of T. gondii and could c...

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Bibliographic Details
Published in:Pathogens (Basel) 2023-03, Vol.12 (3)
Main Authors: Dini, Filippo Maria, Graziosi, Giulia, Lupini, Caterina, Catelli, Elena, Galuppi, Roberta
Format: Article
Language:English
Subjects:
Disease transmission
Environmental aspects
Health aspects
Migratory birds
Risk factors
Toxoplasmosis
Zoonoses
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Summary:Toxoplasma gondii is a worldwide distributed zoonotic protozoan capable of infecting a wide range of mammals (including humans) and birds as intermediate hosts. Migratory wild birds, through interconnecting countries along their flyways, can play a role in the spatial spread of T. gondii and could contribute to its sylvatic cycle. Additionally, hunted wild birds used for meat consumption could represent a further source of human infection. To determine the presence of T. gondii in wild birds, a total of 50 individuals belonging to the Anseriformes and Charadriiformes orders were sampled during the 2021–2022 hunting season in Northern Italy. Cardiac muscle samples of three Northern shovelers (Anas clypeata), two wild mallards (A. platyrhynchos), one Eurasian teal (A. crecca), and one Northern lapwing (Vanellus vanellus) were positive for the molecular detection of T. gondii based on a targeted amplification of the B1 gene. A 14% (7/50) overall positivity was observed in the sampled population. Results from this study suggest a moderate exposure of wild aquatic birds to T. gondii, highlighting the importance of a further characterization of T. gondii in its wildlife hosts.
ISSN:2076-0817
2076-0817
DOI:10.3390/pathogens12030478