I am 29 years old male. I had mild fever for three days after which I consulted a doctor. He asked me to take lab tests for CBC and Widal test which I took. Salmonella typhi (O) was 1: 160 and Salmonella typhi (H) was 1: 80. He has prescribed me injection ceftriaxone 1g IV for three days two doses per day and he said that is enough and no need to take any other antibiotics. Now I have completed 5 doses and have only one dose remaining. He has not prescribed any antibiotics after when I have completed the injection doses. Do I need not take any antibiotics after the injection doses. Because I have learnt that the bacteria do not die easily and I may become a carrier for life long which bothers me more. Kindly help.