Health care and medical evacuation insurance are two essential things, which should be obtained before you visit Angola. Health care is free but unreliable, so it is advisable to bring your own medicine and first aid kits.
Water should be considered contaminated and precautions need to be taken before consuming it. To stay safe from water borne diseases like cholera, hepatitis and diarrhoea boil water before you drink it. Dairy products must be avoided; the milk is unpasteurised so boiling it before consuming it is a must. If you swim in Angola then stick to the chlorinated hotel pools and beaches, because bilharzia is a serious problem.
It is also advised that you keep copies of important documents in an additional place, maybe even a safe deposit box of the hotel.
Warning: Owing to the unstable political condition of the country, Angola is certainly not the ideal country to visit. If you must go, it is important for you to check on the latest political situation of Angola before visiting. Apart from the warring guerrillas, the police and soldiers are all armed with automatic weapons because of the civil war in the country. Slow down and stop at police checkpoints, especially if ordered to. They are not known for their patience and fortitude, so it is best to follow their instructions and avoid confrontations. Carry copies of your travel papers on your person at all times in this country – you may be asked to produce them at intervals and checkpoints.
Although street crime is negligible in Angola, armed robberies and attacks on travellers on the road outside the main city centre is on the increase. Walking around in the late evening must be avoided because "carjacking", especially of foreigners, is a new problem in Angola.