If you are travelling outside a town please carry an emergency AIDS kit with you. There is rabies and bilharzia but the other most likely hazard comes from the tumbu or putzi fly. It lays eggs in damp clothes, towels or swimwear, especially if left outside to dry. These eggs hatch out under human skin causing painful and unpleasant swellings. Ironing everything should kill the eggs.
Street food is often delicious and usually pretty clean.
There are medical and dental facilities in the large towns, while pharmacies are usually well stocked and are qualified to give medical advice. If you need to see a doctor the Council will arrange it for you. The British Council is the United Kingdom's international organisation for educational and cultural relations. Registered in England as a Charity.