This figure shows the number of notified cases of Legionella longbeachae, Legionella pneumophila and other/unknown species in Australia from 2009 to 2014. Notification rates of legionellosis have steadily increased from 297 notified cases in 2009 to 508 notified cases in 2013, and then declined again to 424 in 2014. In 2014, 39% of cases were Legionella longbeachae, 46% were Legionella pneumophila, and 15% were other/unknown species. End of description.