Marineland belugas that died in Chicago had chronic inflammatory disease, preliminary necropsy findings show

<img src='https://i.cbc.ca/ais/e64e3138-8671-4155-a0c1-e5c50c43aaa7,1790369542106/full/max/0/default.jpg?im=Crop%2Crect%3D%280%2C0%2C1920%2C1080%29%3B' alt='A beluga in a pool.' width='620' height='349' title='A beluga in a pool.'/><p></p>