whirling disease
noun
mass noun
1- a disease of trout caused by a parasitic protozoan, affecting the balance of the fish and causing it to swim with a whirling motion（寄生原生动物引起的）鳟鱼眩晕病。
1.1
- The protozoan is Myxosoma cerebralis, phylum Sporozoa.该原生动物为脑粘体虫, 孢子虫门。