Which of the following is a sub-goal for preventing infection in ambulatory care programs? A. Use guidelines to prevent infections after surgery. B. Develop and use guidelines to prevent difficult-to-treat infections. C. Use guidelines to prevent infections of the urinary tract caused by catheters. D. Use guidelines to prevent infections of the blood from central lines AM

Which of the following processes within viral replication is the greatest source of genetic variation in rna virus populations? a) high mutation rate due to lack of proofreading of rna genome replication errors. b) transcription from the host cell rna polymerase introduces numerous mutations. c) capsid proteins from the host cell can replace the viral capsid. d) viral rna is translated by host cell ribosomes.