<s>[INST] hi Doctor......my father is down with fever for the last 12 days and its continuing..he had a fever, headache, body ache and vomiting sensation . blood test done and its indicates TIFOID.... now what should we do .....I mean to approach new doctor or what...pls suggest. [/INST] Hi thank you for posting on Chat Doctor after reading about your concern as its second week that your father is having such symptoms I will suggest you to first do blood culture. The reason for this is it will give a better clue for susceptible organism that causing such symptoms. Then next step will be suggesting a specific antibiotic according to blood culture report. Thanks and take care.regards. Chat Doctor.  </s>