<s>[INST] Hi my 5year old daughter suffered from typhoid on 22august we treated her with azithromyin and around 5 days back was completely okay so we send her to school but now the fever below 100 is back.Is this a cause of concern.She took antibiotic for 15days approx. [/INST] Hi, welcome to Chat Doctor.contour child is fully recovered from typhoid, and he again develops typhoid, you need to understand how typhoid is caused. Typhoid fever is contracted by Chat Doctor.  People with acute illness can contaminate the surrounding water supply through stool, which contains a high concentration of the bacteria. Contamination of the water supply can, in turn, taint the food supply. The bacteria can survive for weeks in water or  </s>