The US star was set to visit Sydney and Melbourne early next week in a highly-publicised tour for Swisse.
A cocktail party was due to take place at the Grand Hyatt in Melbourne next Tuesday night.
On Twitter she has said:
Trying to get over a bug before I go to Australia. Nobody wants to be down under the weather.
Between my humidifier & Portia making me tea non-stop, there’s so much steam coming from our house people think we picked the new Pope.
The good thing about being sick is I don’t have to miss one minute of #PopeWatch2013. Back to the Chimney Cam.
A statement from Warner Bros indicates:
“The Ellen DeGeneres Show” will delay its arrival into Australia by a few days while Ellen recovers from the flu.
Ellen will meet her fans in Sydney later next week, and will then head to Melbourne.
More announcements about the trip will be made in coming days.
Swisse has been contacted for comment.