“The National Science Foundation (NSF) has agreed to provide a humanitarian medical evacuation flight for an ailing visitor from its Amundsen-Scott South Pole Station to McMurdo Station on the Antarctic coast and then to New Zealand,” the National Science Foundation said in a statement. “The flight to New Zealand will be scheduled as soon as possible.”
https://www.scientificamerican.com/article/ailing-buzz-aldrin-evacuated-from-antarctica/