The Sharks beat the North Queensland Cowboys 26-16 in Townsville on Saturday night.
But the result did not come without some worrying pre-match moments for the visitors, who scored five tries to three on their way to victory.
Six Sharks players, including Kiwis halfback Shaun Johnson, failed pre-game temperature checks, putting their participation in the game in doubt.
All six were eventually cleared to play after passing a subsequent second test.
Earlier on Saturday, Parramatta scored a controversial 19-16 win over Manly.