That depends on the severity of the symptoms. If they are simply a few remnants of symptoms that are on the recovery part...it has not been a problem and it also depends on what the job is.

I work on my feet for many hours and have high pace walking. If i have a foot injury, I will stay home longer than if the health issue was a head cold.

When I worked at a call centre, and I had a head/sinus cold....it affected my work performance there much worse than it would affect me at this one, whereas, a foot injury would not have affected my work performance there at all, because I was sitting down all during my shifts. So it varies.