Yo u are i n ves t ig a t i n g a nati o n a l o u tbre a

Chapter 7, Problem 3

(choose chapter or problem)

Yo u are i n ves t ig a t i n g a nati o n a l o u tbre a k o f Ralstonia mannitolilytica associated with use of a contaminated oxygen-delivery device among pediatric patients. e device adds moisture to and warms the oxygen. Each hospital followed the manufacturers recommendation to use a detergent to clean the reusable components of the device between patients. Tap water is permitted in the device because the device uses a reusable 0.01-_m lter as a biological barrier between the air and water compartments. Ralstonia is a gram-negative rod commonly found in water.Why did disinfection fail?What do you recommend for disinfecting? e device cannot be autoclaved.