Leeds United are due to take on Hull City at the KC Stadium on Saturday.
Leeds beat Wolverhampton Wanderers 2-1 in their last outing, and they put in a superb performance during the second half of that contest.
The Whites have now won six of their last 10 matches, but Evans is set to continue to tinker with his line-up.
“We’ll be in good shape going across to Hull on Saturday,” he said.
“There are decisions to be made and there will be a change of team.”
Leeds did have a spate of illnesses before their match against Hull, with Liam Cooper one of the players who felt short of full health - even though he played for 90 minutes.
However, Evans has now confirmed that the bulk of the squad are over any illnesses, with the exception of Tom Adeyemi.
“We had some illness about the place – young Tom Adeyemi is still suffering a little bit,” the 53-year-old boss added.
“But, other than that, I think we’re just about coming through the other side of it. That’s good, especially on the back of three outstanding victories.”
If Leeds are able to win on Saturday they could move up to 10th place in the Championship table, which would be a remarkable rise given where they were when Evans took over.
Hull, meanwhile, will be desperate to secure the three points as they look to keep their slim hopes of claiming an automatic promotion spot alive.