<prompt> True about maximum isolation period of enteric fever is -Up to 3 days after staing the treatmentTill 3 consequent negative stool cultures are obtained from the patientTill the fever subsidesTill Widal test becomes negative  <response>: 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, Parks Textbook of Preventive and Social Medicine, Page no. 258, 259 