Efficacy of new point-of-use water filter for preventing exposure to Legionella and waterborne bacteria. Posted by admin on October 5, 2016March 9, 2021 Sheffer PJ, Stout JE, Wagener MM, Muder RR. Efficacy of new point-of-use water filter for preventing exposure to Legionella and waterborne bacteria. Am J Infect Control. 2005 Jun;33(5 Suppl 1):S20-5. Download / Print Go Back