malignant catarrhal fever
Medical Definition of malignant catarrhal fever
: an acute infectious often fatal disease of cattle, some other bovines, and deer that is caused by any of several herpesviruses (genus Rhadinovirus) and is characterized by fever, depression, enlarged lymph nodes, discharge from the eyes and nose, and lesions affecting most organ systems—called also catarrhal fever, malignant catarrh
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