Very sick bunny

Question
Today I Had to put my bunny to sleep. Last night I fed her as normal this morning I noticed she didn't touch her food.When I came home from work she was very lethargic and was covered with diarrhea. I clean her up a bit and took her to the vet. But by the time I got there I already knew she wasn't going to make it. The vet said it wouldn't be humane to try and save her. I guess my question is what causes something like this so quickly. She was only 4 months old. I have another rabbit that was not in contact with her and I don't want this to happen to him. I want to make sure it's not something that I'm doing wrong. He is 11 months old.(my vet didn't really have a answer without me having alot of test done on her. If I thought it would save her I would have but she definitely wasn't going to make it

Answer
Dear Brenda,

While it is not easy, and not always possible to save a rabbit in condition this serious, I'm a little surprised and disappointed to hear that the vet didn't even *try*.  I suspect the vet was not very experienced with rabbits, and didn't really know what to do.  

Very young rabbits often get severe diarrhea, and I have developed a protocol that has enabled me to save their lives.  As far as I know, I'm the only one who does this, but it works.  You can find the protocol here:

www.bio.miami.edu/hare/squirts.html

I am so sorry it comes too late to help your bunny.  It's possible that even those treatments might not have saved her.  It is not possible to know that.   

But I hope that if you ever have another bunny in your heart and home, you will have that as an emergency information packet, as well as:

www.bio.miami.edu/hare/sickbun.html

You can also find an experienced rabbit vet here:

www.rabbit.org/vets

I am very sorry about your terrible loss.

Take care,
Dana