Two adults are being tested for bird flu after an outbreak of the virus on a North Wales farm sparked a major alert to contain the disease.
Dr Christianne Glossop, chief veterinary officer for Wales, said it is not the most dangerous H5N1 strain, but H7N2 low pathogenic avian influenza.
She said: "We have no reason to believe that the viral infection is spreading rapidly within this small population. This isn't another East Anglia situation at the moment."
Thirty chickens have been slaughtered at the smallholding in Corwen after 15 birds died.
Tests are being carried out after the farm's owners contacted their vet.
A 1km restriction zone has now been set up around the farm in a bid to stop birds and bird products being moved in or out of the area.
The results are expected soon on the two adults connected to the smallholding, and everyone entering the site is taking the flu drug Tamiflu as a precaution.
Dr Glossop said: "Wales and Great Britain contingency plans have been activated, and in line with these the farm has been placed under restrictions.
"We are not yet asking birdkeepers within the zone to bring their birds indoors."
The source of the outbreak is being investigated, and Dr Glossop is urging poultry keepers to look out for signs of disease in their birds.
Dr Mike Simmons, senior medical officer for Wales, said there is enough Tamiflu to provide a five-day treatment course for a quarter of the country's population.
Chief Veterinary Officer for Wales
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