I understand that in the winter of this year the yellow fever vaccination was no longer required for entry into SA from Zambia. But while at the travel clinic today for my visit with the nurse she read something to us stating that certain Zambian borders may deny you to exit if you have not had the shot ( as in they are not updated as to the new procedure). Our itinerary is as follows: JFK to Tambo, connecting flt to Livingstone. Zambia for 4 nights, journey to Botswana ( 6 nights), then flight to Capetown ( 6 nights). Departure: CT to Tambo to JFK. Would like to hear from recent travelers as to their experience crossing these borders in relation to being asked to present YF documentation. Thank you.