Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to treat keratitis in cats [title] Bring your cat to the vet to verify its condition. [step] If you notice symptoms of keratitis, you should take your cat to its vet as soon as possible. They'll give your cat a physical examination and take cultures to identify any bacterial or viral causes.

Ending1: [substeps] Your vet can also tell you how long the infection has been lived-typically one year and seldom more. They'll then ask about preventative measures to combat the condition. Ending2: Keratitis is a virus that occurs when people ingest too much oral medication. It causes disease that affects cats as well as humans. Ending3: Symptoms of keratitis include : [substeps] Excessive tearing or discharges from the eye. White or pink plaque or lesion over the surface of the eye. Ending4: If the cat has any internal parasites, it could cause more symptoms. You should consult with your vet to ensure that your cat is safe and free of parasites before bringing it in.

Answer format: ending1/ending2/ending3/ending4