He had tested positive on Friday during the first game of the five-match one-day series. But in another test, the batsman returned negative and was allowed to take the field.
He showed no symptoms when he tested positive in the last attempt before the first match of the series, which eventually was called off after 30 overs.
The test took place ahead of the first match, and both the teams took the field before the result came in. The result appeared during the game which showed that Pretorius is positive. Right after that, the umpires and match referee called off the game.
Source: United News of Bangladesh