Swimmer nipped on the ankle (broke the skin) by an otter while swimming in a lake. She did nothing to cause this reaction. Should she get a rabies shot?

This happened in a small lake in the Pacific Northwest. The otters are new to the lake in the last couple of years. I heard two years ago a little girl was nipped on her hand when she put it in the same lake. Also, we have learned that are no known cases of rabid otters in this State.