Lepto from mice?

I live in New York City, in an apartment. Two days ago, I left Honey's food out on my kitchen counter overnight by accident (it is in a plastic bag, but I keep it in a sealed container, usually) and in the morning I saw the corner had been nibbled through by a mouse!

I threw out the food, and got supplies to disinfect my apartment. When I began really cleaning, I found mouse droppings under my sink where I keep my trash. It's so gross.

I've cleaned most of my surfaces with bleach, and put out peppermint oil which is supposed to repel the mice. My super is going to come by this week to put steel wool and caulk in any small holes to try to keep the mice out. I don't intend to use poison as I know it is extremely unsafe for dogs.

I haven't seen/heard any mice, and my apartment is generally very clean, but my understanding is that these signs indicate that the mice have been at least entering my apartment for a little while (a few days? weeks? there weren't too many droppings, but enough to not be a one day thing, I think).

My biggest worry is leptospirosis for my dog. I read that mice basically "continually pee" so there is probably dried mouse pee all over my apartment (or at least the kitchen), and probably was there before I even knew there was a mouse problem. My fear is that Honey might have stepped in it or sniffed it. Sometimes she licks the floor after she finishes eating her dinner, too.

She was vaccinated for lepto last year, but we actually just got the notice that she is due on 12/8/13, and I have read that the vaccine isn't usually effective for a full year. Also, I know it is not 100% effective.

My question is: what are the risks that any given mouse/mice population is carrying leptospirosis? And what are the risks to Honey being a dog who lives in a small apartment where mice have been? What steps do I need to take to make sure she is okay?

I read that lepto thrives in warm, moist areas. I imagine any mouse pee would dry rather quickly (I've never noticed any at all), so does this protect her some? Does the bacteria die in dry environments, or live for a few days?

PS: I know lepto can also affect humans, but I'm less worried about myself because I don't lick my floors or sniff around the trash can like my pup does...