To decrease the risk of the most common illnesses in Tanzania, make sure that you take all the recommended vaccinations, in consultation with your doctor.
Besides malaria, there are also other mosquito-borne viral infections, such as dengue and chikungunya, against which you can only take preventative measures like using a mosquito repellent. Please note, unlike malaria, dengue mosquitoes are active during the day with peak activity during early morning and late afternoon. Therefore, it’s important to use mosquito repellent during the day.
While chikungunya is rarely life-threatening, dengue can potentially be very dangerous.
Furthermore, travelers diarrhoea is also another common ailment that people can get traveling overseas.