Wasps have been given the all-clear to take their place in Saturday's Gallagher Premiership final against newly crowned Heineken Champions Cup winners Exeter.
Seven Wasps players and four backroom staff had been diagnosed with coronavirus, before further tests were undertaken on Tuesday.
Premiership Rugby said in a statement: "Premiership Rugby can confirm that Wasps have been given the all-clear to take their rightful place in Saturday's Gallagher Premiership rugby final against Exeter Chiefs.
"Everyone at Premiership Rugby is delighted to confirm Wasps' place in the final after the latest round of tests as part of our PCR Covid-19 screening programme."
Bristol, who finished third in the Premiership and were crushed 47-24 by play-off opponents Wasps 11 days ago, had been on stand-by to face European champions Exeter.
But Premiership Rugby confirmed Wasps' presence at Twickenham in what will be a repeat of the 2017 final.
Wasps have been transformed under head coach Lee Blackett since he took charge earlier this year, winning 12 their last 13 games and surging up the Premiership table to finish second behind Exeter.