JaNean Mercer released a statement about her recovering nephew
Credit: Rocky Widner/NBAE/Getty

Lamar Odom‘s family is thanking his supporters and doctors as the former NBA star continues his recovery in Los Angeles.

On Monday night, Odom, 35, was airlifted out of the Las Vegas hospital where he had been treated since being found unconscious in a brothel Oct. 13.

“We would like to send a tremendous THANK YOU to the illustrious medical team at Sunrise Hospital and Medical Center in Las Vegas,” his aunt JaNean Mercer tells PEOPLE in a statement. “Your superb, round-the-clock care gave us the comfort and assurances we desperately needed to know Lamar would persevere.”

Mercer was spotted at Cedars-Sinai Medical Center in L.A., and Odom’s estranged wife Khloé Kardashian has also stayed by his side.

“As Lamar begins a new chapter in his road to recovery, PLEASE continue to uplift him and the family in prayer. He continues to make miraculous progress, taking a few steps in Los Angeles. We couldn’t be more overjoyed! We realize Lamar’s continued improvement will not be easy, however his unrelenting strength and faith in GOD will pull him through,” Mercer says. “To everyone from across the nation and around the world who continued to send your love and prayers, we THANK YOU sincerely.”

Odom spent four days in a coma last week, and a source told PEOPLE on Monday that he is responsive but “still very weak.”