Wasps survived an uncomfortable evening in Newport to end their losing streak with a 24-8 victory that was sealed with late tries by their back rowers Jack Willis and Thomas Young.
The match only went ahead after the organisers sought medical advice when they were informed by the Dragons on Friday that two of their contingent had tested positive for coronavirus. Six of matchday squad were told to isolate, including the Wales internationals Aaron Wainwright and Leon Brown.
The Dragons took the battle to Wasps but trailed 12-3 at half-time after the England scrum-half Dan Robson supplied an assist and a try. After the wing Jared Rosser was sent to the sin-bin for a no-arms tackle on Zach Kibirige which saved a try, Wasps took advantage.
Robson’s flat pass to hooker Tom Cruse left Rhodri Williams flat-footed and the scrum-half was caught out again 10 minutes later when Lima Sopoaga counterattacked for Josh Bassett to dummy before passing inside to Robson.
In the first half, the Dragons were restricted to just one Sam Davies penalty, although when Sopoaga saw yellow for not using his arms as he tackled the onrushing Josh Lewis, the home side produced their first passing move of note for Jonah Holmes to score.
But the Dragons lost the prop Aaron Jarvis to the sin-bin for persistent collapsing and when he was blown again on his return, Wasps forced two line-outs for Willis to secure a victory that was garnished with a bonus point by Young.