True about maximum isolation period of enteric fever is -
Man is the only known reservoir of infection., viz cases, and carriers. A case is infectious as long as bacilli appear in urine or stools Ref: 25th edition, Park's Textbook of Preventive and Social Medicine, Page no. 258, 259
Up to 3 days after staing the treatment
Till 3 consequent negative stool cultures are obtained from the patient
Till the fever subsides
Till Widal test becomes negative
Epidemiology