Not all U.S. medical insurance is valid outside the United States. Travelers have found supplemental medical insurance with specific overseas coverage, including provision for medical evacuation, to be useful. Cholera is prevalent in many areas of Tanzania. Incidents include attempted rapes, muggings, vehicle thefts, and residential break-ins. Thieves on buses and trains may steal valuables from inattentive riders.
Visitors driving in and near game parks are at risk.
In recent years, there has been an increase in acts of armed banditry in and around parks and reserves frequented by tourists. The Tanzanian government has taken steps to increase security in the national parks. Assaults in Zanzibar and along public beaches in Dar es Salaam are not uncommon, and police, particularly in Zanzibar, appear inattentive to the problem. Crime and hazardous road conditions make travel by night dangerous. Carjackings have occurred in both rural and urban areas.