Nosocomial infections involve all the following except
A. are only transmitted by medical personnel.
B. often involve the patient's urinary tract and surgical incisions.
C. the patient's resident biota can be the infectious agent.
D. Escherichia coli and staphylococci are common infectious agents.
E. medical and surgical asepsis help lower their occurrence.
Ans: A. are only transmitted by medical personnel.
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