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Article History

Received: 14 November 2022

Accepted: 22 March 2023

First Online: 30 March 2023

Declarations

:

: None of the procedures authors performed involved animals and authors had no direct contact with them. All samples were from the pig farm environment. These were air samples, swabs, litter and faeces samples (taken after defecation). In addition, samples of litter and faeces were collected by pig house employees so as not to stress the animals with the presence of strangers. The oral consent of the pig farm owner was obtained for sampling.

: Not applicable.

: The authors declare that they have no competing interests.