Farmers are on high alert after the first case of Mycoplasma bovis in the Bay of Plenty has been confirmed on a Waiotahi farm.
Federated Farmers Bay of Plenty president Darryl Jensen said the Ministry of Primary Industries (MPI) was investigating after the disease was found from a bulk milk test on the farm near Ōpōtiki.
The farm was being depopulated at the moment, meaning all cattle on the farm were being culled, he said.
He said once that was done there would be a 55-day "decontamination" period, where the property was completely disinfected.
"One case is one too many when it comes to this.