How will I know it is safe for my cat?

That's right. You don't care the percentages of how low the risk is; you just want to know, is your cat going to be okay? And I think that comes through the relationship of knowing your cat, through the physical exam, through the blood work, and the test. But we also look at your cat individually, and we talk to you. It's a conversation, and so we speak with you about those risks individually. And again, we weigh the risk and the reward and talk about that.