There are no vaccination requirements as the Western Cape is far from all malaria zones and there are no strange diseases in the area (given you respect the safety rules as anywhere else in the world). Some travel sites recommend you have your Hepatitis A, Typhoid and Hepatitis B, but this is at your discretion as it is not a specific requirement to enter the country and is not required for the programme. However, we suggest you speak to your local healthcare practitioner and decide accordingly.