Birds on two poultry farms in Suffolk and Norfolk in the UK have tested positive for a strain of bird flu, reports the BBC.
Veterinarians from Defra carried out the tests at Bernard Matthews breeder sites. The birds tested positive for avian influenza but not the highly pathogenic H5 or H7 types.
Defra has not advised a cull of the birds but has placed a movement restriction on them, says the BBC.
“A routine veterinary investigation is ongoing at poultry premises into the possible presence of a notifiable avian disease. Laboratory tests are ongoing and there is no conclusion yet,” a Defra spokesman said.