Which statement about the prevention and treatment of tb is false? a. the bcg vaccine is the most important aspect in reducing the transmission of tb. b. who recommends starting antiretroviral therapy for anyone who is hiv-positive who has tb. c. any responsible individual can be a dots provider. d. dots is a cost-effective approach to tb treatment.

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.