"It's serious but it's not life-threatening," Erskine told Australian Associated Press.
"From a competitive point of view - he will not be swimming competitively again I don't think."
Thorpe reportedly picked up the infection while at home in Switzerland, but has returned to Australia where he is fighting the illness. Australia's Network Seven reported that the problems began following surgery at a hospital near the Swiss village of Ronco sopra Ascona, where Thorpe has a home.
