June 20, 2017 zacherlaw 0 Comments

Legionella, the Legionnaires’ disease causing bacteria,  is ubiquitous in the natural environment, especially in damp soil and water. While the organism is present more or less everywhere, water temperatures of 72–107 °F are ideal conditions for rapid growth. This explains why outbreaks of Legionnaire’s disease become more common in the summer months and have often been linked to contaminated artificial water systems – especially air conditioning units in large buildings which use water for cooling. Studies of associations between weather variables and sporadic cases of legionnaires’ disease suggest that as temperatures rise globally so too does the prevalence of environments conducive to legionella growth.…