Dr,i had taken rabipur injection on 5 / 9 /2013 , four dose shot , the last dose was on 13 /10 /2013 , i was bitten by my pet dog , he is vaccinated on july 2013 , again today ie on 14/02/2014 i was bitten by him , should i have to take the anti rabipur injection again , what is the validity period for this injection?, waiting for your reply sir.