The last case of naturally contracted smallpox occurred in

The last case of naturally contracted smallpox occurred in
 
  A. 1900.
  B. 1950.
  C. 1965.
  D. 1977.
  E. 1989.

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The virus originally used for vaccination against smallpox is named
 
  A. vaccinia.
  B. cowpox.
  C. rubella.
  D. herpes.

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Almost all of the antibodies found in a newborn are
 
  A. the result of infection.
  B. self-made.
  C. IgM.
  D. the result of passive immunity.

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The term vaccination
 
  A. is a general term that would include the process of variolation.
  B. was coined by Jenner.
  C. was coined by Pasteur.
  D. comes from the Latin for cow, vacca.
  E. is a general term that would include the process of variolation, was coined by Pasteur AND comes from the Latin for cow, vacca.

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The scientist who made variolation safer and more effective was
 
  A. Pasteur.
  B. Jenner.
  C. Metchnikoff.
  D. Fleming.