The US Centers for Disease Control and Prevention's Advisory Committee on Immunization Practices (ACIP) is recommending reducing the vaccine schedule for postexposure prophylaxis to prevent human rabies in individuals who have not previously received rabies vaccine. The proposed schedule reduces the number of vaccine doses given from 5 doses to 4 doses. The schedule for individuals who had previously been vaccinated against rabies remains the same.
For those who have not been previously vaccinated:
Mitka M. CDC Advisors Suggest Streamlining Postexposure Prophylaxis for Rabies. JAMA. 2010;303(16):1586. doi:10.1001/jama.2010.455