Bluecomb

"Blue comb disease" affected turkeys of all ages. In the authors' experience, mortality was 25-50% in young poults and 5-25% in "range" turkeys.

The highly contagious disease bluecomb, also called transmissible enteritis and mud fever, affects the intestinal tract of turkeys of all ages, including breeding stock.

Particles morphologically similar to coronaviruses were found in bluecomb-infected turkey ceca, the bursa of Fabricius, and embryo intestines, but not in the same tissues of uninfected controls.