The southern hemisphere appears to have had a mild flu season during its winter.
Times,Sunday Times
Actually, they both look remarkably similar, like mild flu.
Times, Sunday Times
A further seven people who had come into contact with them had developed mild flu symptoms.
Times, Sunday Times
Most people either have no symptoms when they become infected, or may feel as if they have mild flu.
Times, Sunday Times
With luck, it will be the mild flu season that some medical analysts predict.
Houston Chronicle