Funding for this research was provided by:
Det Sundhedsvidenskabelige Fakultet, Københavns Universitet (0000)
Received: 21 September 2021
Accepted: 21 November 2021
First Online: 9 January 2022
: All participants have approved the manuscript and given consent to participate. All samples from animals originated from dead chickens from a commercial farm. The swabs were taken as part of the standard diagnostic procedures by a the vet attending the farm. For that reason no ethical approval was required.
: All authors have approved the manuscript and given consent to publish.
: Hanne Skaarup is employed at Danhatch Denmark, which is the hatchery delivering day-old chickens to the farm included in the manuscript.