| 1. | The Salk vaccine was made from inactivated viruses that could not cause disease.
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| 2. | The live virus vaccine promised lifetime immunity, while the original Salk vaccine did not.
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| 3. | Lilly manufactured 60 percent of the Salk vaccine in 1955.
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| 4. | Coriell ran the field trials of the resulting Salk vaccine.
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| 5. | The Salk vaccine, cultivated in minced kidney tissue taken from monkeys, provided the perfect opportunity.
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| 6. | We have not developed a Salk vaccine for depression,
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| 7. | In March, the University of California began testing the Salk vaccine on 3, 000 volunteers.
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| 8. | Towards the end of the season, Birmingham and Salk vaccine was available, takeup had been slow.
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| 9. | Ironically, it is the less successful Salk vaccine that the United States is now returning to.
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| 10. | The Salk vaccine promised to end the terror.
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