01/26/2015 08:00 EST | Updated 03/28/2015 05:59 EDT

Canada expands poultry bans involving four U.S. states as avian flu spreads

OTTAWA - The Canadian Food Inspection Agency has implemented new restrictions after more cases of avian flu were confirmed in California and Idaho.

The bird flu has been a problem for weeks in flocks in Washington and Oregon states.

A CFIA statement says it is taking steps to protect Canadian poultry flocks from a highly virulent strain of the bird flu found in California, Idaho, Oregon and Washington.

The action means that travellers are not allowed to bring back any poultry products that aren't fully cooked.

Canadians shopping in the U.S. are also restricted from bringing back live birds, eggs, egg whites, feathers, poultry manure or lab material containing poultry.

The CFIA says live pet birds may be brought into Canada with certification from the U.S. Department of Agricultural.