... easily available in Nairobi and Tanzaniancities such as Zanzibar, Arusha and Dar es Salaam, than at the Kenyan Coast. The recent study from Dar es Salaam,Tanzania [7] indicates that injecting drug ... (the islands of Pemba and Unguja comprise Zanzibar, which is also the name of the main town on the island of Unguja).Heroin users at the Kenya Coast, as elsewhere within the region, lack information ... obtained from rural and urban areas within the dis-trict. In 2001 local health officials estimated that the HIVprevalence rate in the town was approximately 20%. Itappears that the rate has...