Martina Navratilova's attempt to climb Mount Kilimanjaro was halted when she became ill. From The Advocate:
According to David Silverstein, a consultant in cardiology and internal medicine at the Nairobi Hospital, Navratilova will recover. "Basically this is fluid in the lungs related to high altitude. It is potentially dangerous when someone is at high altitude, but once brought down, recovery is quick," Silverstein says. "Martina is doing well and will continue to do well."
Martina released a short statement on her Web site after being released from the hospital:
Martina has been released from the Nairobi Hospital today after making a full recovery from HAPE - high altitude pulmonary edema – an accumulation of fluid in the lungs. She was in high spirits as she left the hospital. "I am feeling much better and really pleased to be going home. I'd like to thank all the staff at the Nairobi Hospital, who were wonderful, and really took care of me."