DES MOINES, Iowa (AP) — After a six-day break with no new bird flu cases, the Iowa Department of Agriculture says another egg-laying chicken farm has tested positive. A farm in Wright County with 1 million chickens has experienced increased deaths among the flock and a preliminary test indicates the presence of the bird flu virus.

The frequency of new cases has slowed dramatically with no new cases in Minnesota in 11 days. Iowa’s last reported case was June 9. The bird flu has cost Minnesota, the leading turkey producer, 9 million birds. Egg farms in Iowa, the nation’s leading producer, have lost over 25 million laying hens.

State officials say all 76 previously affected farms have removed the 32 million birds that already died or were euthanized. Disposal of the dead birds continues.