A team spokesperson confirmed that Wade, the second wicketkeeper in team after Josh Inglis, who was ruled out due to injury, is positive for the virus.
A 69-run stand for second wicket between Nissanka (40) and Silva (26) kept Lankans in a good position but the Aussies made comeback with some quick wickets, exploiting Lankans' tendency to hit loose shots
The pacer becomes the first fast bowler to lead the Australian side in the 50-over format and only the second bowler after the late Shane Warne who led the team in the ODI's for 11 games in the nineties.
Warner, 35, was given a one-year cricket ban and a captaincy ban by Cricket Australia for his involvement in the ball-tampering affair at Newlands in 2018.
David Warner scored 73 off 44 and notched another fifty against the English team but failed to take his team across the line as Mark Wood claimed three wickets while giving just 34 runs in his four overs.
The former batter pointed out that the ropes were brought in significantly during the first T20I between Australia and England and added that big grounds, long boundaries make cricket in Australia unique
The series will be extremely crucial for Aussies and they will be looking forward to get every box ticked ahead of the World Cup, especially after a 2-1 series loss to India recently
Mitch Starc (knee), Mitch Marsh (ankle), and Marcus Stoinis (side) have all been ruled out of the tour, and Nathan Ellis, Daniel Sams, and Sean Abbott have been added to the squad in their place. David Warner was already unavailable since he was provided with a break.