The Source Of Legionellaceae Causing Hospital-Acquired Pneumonia Has Been Linked To Hospital Water Supplies. In Health Care Settings, Hot Water Coming Out Of The Faucet Should Not Be Hotter Than 40.6degreeC To Prevent Scalding Skin. However, Legionella Can Grow If Incubated At That Temperature. The CDC Recommendation For Hot Water Storage (I.E., Hot Water

 

 

 

CLINICAL APPLICATION The source of Legionellaceae causing hospital-acquired pneumonia has been linked to hospital water supplies. In health care settings, hot water coming out of the faucet should not be hotter than 40.6C to prevent scalding skin. However, Legionella can grow if incubated at that temperature. The CDC recommendation for hot water storage (i.e., hot water heater) is significantly higher. Using the DRT values below, how long would it take to kill 10' Legionella cells at 45C? Heating water is expensive so what is the minimum temperature (from the data) you would recommend for hospital water storage? Temperature (C) DRT value (min.) The minimum 45 2500 50 50 380 55 139 60 60 80 2.3-4.8 0.4-0.6