Visitors are advised to take precautionary measures to avoid being bitten by mosquitoes. You may use insect repellent, wear long sleeved shirts and trousers in evenings and utilize mosquito nets. Hospitals provide good medical care in cities and in the remote areas or on safari. Flying Doctors facilities are also available. However, it is also advised to carry medical kits for emergencies.
According to the Centers for Disease Control and Prevention (www.cdc.gov), the following vaccinations are recommended for Tanzania:
hepatitis A
hepatitis B
rabies
typhoid
boosters for tetanus, diphtheria and measles
An International Certificate for vaccination for yellow fever is required to enter Zanzibar.