What are the diseases considered common in cats?

Cat Beds and Furniture
Cat Bowls and Feeders
Cat Carriers, Playpens and  Tote Bags
Cat Collars & Leashes
Cat Doors
Cat Flea and Tick Control
Cat Food Center
Cat Gifts
Cat Grooming
Cat Health Care
Cat Litter Products
Cat Repellants
Cat Stain and Odor
Cat Toys
Cat Treats