Based on comments from Khris Middleton earlier this week, it appears that Giannis did test positive for COVID-19 and was symptomatic.
There were hopes that Durant could potentially be cleared based on a new agreement the league and the NBPA are working on.
Gilgeous-Alexander had the first triple-double by a Thunder player at home since Russell Westbrook during the 2018-19 season.
Jrue Holiday led the Bucks with 24 points. Khris Middleton added 23 after missing three games with a hyperextended left knee.
The New Orleans Pelicans beat the Portland Trail Blazers 111-97 on Tuesday night for their first three-game winning streak of the season.
Deandre Ayton had 19 points and 11 rebounds, and Booker scored 24 as the Suns won their fourth consecutive game.