Roy Horn has been fighting coronavirus after he tested positive for the deadly bug.
The Siegfried & Roy star, 75, has been receiving treatment for COVID-19, according to his representative.
An update shared the entertainer has been responding positively to the treatment as he makes his recovery.
Double act Siegfried & Roy sent their positive wishes to people across the world affected by the killer virus.
His publicist said in a statement: "We can confirm that Roy Horn has tested positive for the virus that causes COVID-19 and is currently responding well to treatment.
"Most importantly, Siegfried & Roy send positive wishes to everyone impacted by the pandemic.
"We will have no further comment on Roy’s recovery at this time and ask everyone to respect his right to privacy."
Siegfried & Roy become synonymous for working with white tigers and white lions in the 1990s.
Their double act was terminated when Roy was mauled by a tiger and dragged off stage in October 2003.
The entertainer was left partially paralysed following the terrifying attack.
They made their name in lights when they performed in Las Vegas in 1967.
Their act was made up of magic tricks and performing with tigers.
During their success, they took centre stage at different casinos.
Siegfried & Roy were the headlining act at the Mirage Resort and Casino in 1990.
Their legend was being transformed into a biopic which will hit screens in 2021.
