Laboratory Experiments in Microbiology (11th Edition)
Laboratory Experiments in Microbiology (11th Edition)
11th Edition
ISBN: 9780321994936
Author: Ted R. Johnson, Christine L. Case
Publisher: PEARSON
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Chapter 22, Problem 1CA

The source of Legionella causing hospital-acquired pneumonia has been linked to hospital water supplies. In healthcare settings, hot water coming out of the faucet should not be hotter than 40.6 ° C to prevent scalding skin. However, Legionella can grow if incubated at that temperature. The CDC recommendation for hot water storage (in a hot water heater) is significantly higher. Using the DRT values below, determine how long it would take to kill 10 7 Legionella cells at 45 ° C . Heating water is expensive, so what is the minimum temperature (from the data) that you would recommend for hospital water storage? Briefly explain.

Chapter 22, Problem 1CA, The source of Legionella causing hospital-acquired pneumonia has been linked to hospital water

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