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10 Cards in this Set
- Front
- Back
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Most viruses are fatal if not cleared by a competent host immune system (true/false)
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false (fatal viruses are the exception to the rule eg. rabies, HIV)
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> 90% of viral infections are asymptomatic (true/false)
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true
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do all viruses have a cell envelope?
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no
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What are the three kinds of viral structures?
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icosahedral, helical, complex
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Viral classification is based on what two characteristics?
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nucleic acid and structural
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What is it about viral replication that makes broad spectrum anti-virals unfeasible?
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the separate, unique mechanisms of nucleic acid replication (7 classes)
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What is the main difficulty in developing a vaccine for HIV?
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antigenic variation (virus can mutate in minutes)
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What are the two required, inactivated viral vaccines?
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Polio, Hep A
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What are the three required, live attenuated vaccines?
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Measles, Mumps, Rubella
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What is the one required subunit viral vaccine?
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Hep B
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