Rabies remains a major public health threat in many parts of the world and is responsible for an estimated 55,000 human deaths annually. The burden of rabies is estimated to be around US20millioninAfrica,withthehighestfinancialexpenditurebeingthecostofpost−exposureprophylaxis(PEP).However,thesecalculationsmaybesubstantialunderestimatesbecausethecoststohouseholdsofcopingwithendemicrabieshavenotbeeninvestigated.Wethereforeaimedtoestimatethehouseholdcosts,health−seekingbehaviour,copingstrategies,andoutcomesofexposuretorabiesinruralandurbancommunitiesinTanzania.Extensiveinvestigativeinterviewswereusedtoestimatetheincidenceofhumandeathsandbiteexposures.Questionnaireswithbitevictimsandtheirfamilieswereusedtoinvestigatehealth−seekingbehaviourandcosts(medicalandnon−medicalcosts)associatedwithexposuretorabies.WecalculatedthatanaveragepatientinruralTanzania,wheremostpeopleliveonlessthanUS1 per day, would need to spend over US$100 to complete WHO recommended PEP schedules. High costs and frequent shortages of PEP led to poor compliance with PEP regimens, delays in presentation to health facilities, and increased risk of death. The true costs of obtaining PEP were twice as high as those previously reported from Africa and should be considered in re-evaluations of the burden of rabies