| 11. | Thus variola offers many targets for drugs.
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| 12. | Smallpox is caused by the variola virus.
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| 13. | Four orthopoxviruses cause infection in humans : variola, vaccinia, cowpox, and monkeypox.
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| 14. | Variola minor was a less common form of the virus, and much less deadly.
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| 15. | Mahy said CDC scientists were looking at new ways to develop potential anti-variola drugs.
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| 16. | Variola major virus ( Smallpox virus)
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| 17. | Twice, variola has been reprieved.
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| 18. | Variola is the virus that causes deadly smallpox, but access to it is severely limited.
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| 19. | A second estimate has placed the separation of variola from Taterapox at 3000 4000 years ago.
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| 20. | Is it technically possible with current biotechnology to create the smallpox virus ( variola ) artificially?
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