Avian Influenza update Part of: Limiting the spread of the disease. Bird keepers in Scotland are reminded to maximise biosecurity and keep their flocks separated from wild birds after Avian Influenza H5N8 was confirmed in a small flock of poultry from a farm on the Island of Sanday in Orkney. Laboratory results of samples taken from the flock have identified the strain as highly pathogenic. In order to limit the further spread of disease, appropriate restrictions have been imposed on the premises and any identified contact premises. A Protection Zone (PZ) of 3 km and a Surveillance Zone (SZ) of 10 km have now been put in place around the infected premises to limit the risk of spread of the disease. Within these zones a range of different controls are in place, including restrictions on the movement of poultry, carcasses, eggs, used poultry litter and manure.