<prompt> In the case of dogbite the biting animal should be observed for atleast -5 days10 days15 days3 weeks  <response>: Post exposure prophylaxis may be discontinued if the suspected animal is proved by appropriate laboratory examination to be free of rabies or in the case of domestic dogs , cats or ferrats , the animals remain healthy throughout a 10 day observation period staing from the date of bite Reference; Park;s Textbook of preventive and social medicine,24th edition.Pg no. 297 