The Centre for Health Protection is investigating a Legionnaires' disease case involving a 69-year-old Wong Tai Sin man.

He came down with a fever, dizziness and chills October 5 and was admitted to Princess Margaret Hospital October 13. He is stable. He recently travelled to the Mainland.

There have been 34 cases of Legionnaires' disease so far this year. Thirteen cases were reported last year and 11 in 2007. Click here for prevention tips.