I have been bitten by a cat after that I visited local PHC for vaccination where doctor prescribed 0.1 ml dose of rabbies vaccine (0.5ml on each hand) for 4days ( Day 0 , 3 , 7 & 28). Whereas in the same hospital another doctor prescribed for  another patient  who was also bitten by cat  1ml dose of rabbies vaccine for 4 days same as above. This confused me will 0.1 ml will be less effective.