02 Sep 2011
From October 1, international travellers stopping over in South Africa – even in transit – on their way home from Zambia or any other yellow fever-endemic countries will be required to show proof of vaccination against the disease.
Under the new regulations, South Africa will refuse entry to foreign visitors who cannot show an international certificate or a valid medical waiver letter on arrival, or place them in quarantine.
The quarantine will last until the certificate becomes valid (10 days after vaccination), or for six days. It is not clear where the quarantine period would be spent: most likely a hotel room paid for by the traveller.
The new policy will apply to all travellers, including those who remain within the confines of the airport, regardless of how long they stay.
Source - etravelblackboard