The 33-year-old fell ill during the opening ceremony of the Olympics in Rio and was diagnosed with a rare strain of the mosquito-borne disease after being taken to hospital.
On Friday night the Team GB ambassador wrote on social media: “Hey, guess who?! After five weeks, I’m out of hospital, alive and finally recovering (even my kidneys have started to slowly improve)!
“A big thank you to the doctors in Rio and to the exceptional NHS and all the wonderful staff at St James’s for literally saving my life.
“I am so grateful for all your messages of support and to my family and friends who have been by my side throughout. Massive love.”
Webster, from Sheffield, had recently completed a 3,000-mile charity cycle ride from London to Rio when she became ill.
Her condition quickly deteriorated and she was put into a medically induced coma.
Doctors diagnosed the rare strain of malaria and she underwent kidney dialysis.
News Source SkyNews