This article is entitled ‘Prevalence and nature of Legionella contamination in aged care facilities in Australia’. The Australian Hospital Engineer (Journal of the Institute of Hospital Engineers Australia) published the article in June 2016. The article explains the collated results of a two year sampling regime of more than 750 environmental samples from 124 Australian aged care facilities. Consequently the article reveals the baseline frequency of Legionella isolations in aged care facilities and their likely sources. It also shows the value of interventions such as point of entry disinfection in reducing Legionella detection.