An investigation following two recent cases of Legionnaires’ disease in patients who had visited Sydney Olympic Park has found an air conditioning tower in the area was contaminated with Legionella pneumophila serogroup 1. The tower has been shut down and disinfected today (2 September).  

These cases may be unrelated and have occurred coincidentally. However if the tower was the source, it is possible that other people have been exposed during August 2010 and could develop Legionnaires’ disease. 

For more information, please refer to this document.