Hello, Typhoid fever is caused by the bacterium S. Typhi. It lives in the gut (intestines) of infected people and can contaminate food and water. Since you are having recurring fever, the infection is still there. You are suggested to get a repeat Widal test done. In the meantime, take boiled water after cooling. You should also take boiled food so that you get more time to heal. Taking oily, spicy food may cause relapse of the symptoms. It can also happen if waste water (water that has poop or pee in it) gets into water you drink or on food you eat. Always wash hands properly before eating. Food should be prepared with proper hygiene. Wash surfaces and utensils used for food prep and eating before and after use. If you’re unsure whether the food you’re eating is safe, eat mostly well-cooked. Don’t drink untreated water or eat food prepared with untreated water or with dirty hands. Do continue to take the medicines prescribed by your treating doctor. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Nupur K., General & Family Physician