| 1. | As with other live-virus vaccines, immunity initiated by OPV is probably lifelong.
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| 2. | After medical internship at measles virus vaccine now used throughout the world.
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| 3. | There are currently no plans to include killed-virus vaccines in the national stockpile.
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| 4. | Influenza virus vaccines have beneficial implications to an individual s health.
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| 5. | A live-virus vaccine, developed by Albert Sabin, was licensed in 1963.
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| 6. | The live virus vaccine promised lifetime immunity, while the original Salk vaccine did not.
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| 7. | Dr . Sabin's live-virus vaccine was declared safe in 1961.
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| 8. | To make a killed-virus vaccine, technicians start by growing, purifying and concentrating the virus.
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| 9. | The immunity afforded by this killed-virus vaccine is short-lived and the virus keeps changing.
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| 10. | The smallpox vaccine is a " live virus vaccine ."
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