The most noticeable feline
respiratory disease is the Cat Flu, a common disease that can be
life-threatening in some cases. The Cat Flu is usually caused by one
or both "cat flu" related feline upper respiratory viruses - rhinotracheitis (herpesvirus) or calicivirus. The Cat Flu is one of several respiratory disorders that can
afflict cats. To better understand Cat Flu and feline respiratory
disease in general, we suggest the following online resources.