The duration of rabies vaccine
is usually dependent on the type of vaccine given. Generally the ones in use nowadays last 5 years. Still i recommend that she gets herself vaccinated. Once its late it will not have nay effect. First dose should go in 72 hours. The routine usually is 0,3,7,14,28 days. If the dog is well at the end of 10 days shhe may skip the last two doses. But stilll she should get vaccinated.