All of the following factors contribute to hospital-acquired infections EXCEPT
A) some bacteria metabolize disinfectants.
B) gram-negative bacteria are often resistant to disinfectants.
C) invasive procedures can provide a portal of entry for bacteria.
D) bacteria may be present in commercial products such as mouthwash.
E) None of the answers is correct; all of these factors may contribute to hospital-acquired infection.
Answer: e
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