Edward Jenner's Work Involved

Multiple Choice

Edward Jenner's work involved

A) inoculation of dried pus from smallpox pustules into a person to stimulate immunity.
B) development of passive immunotherapy.
C) development of an immunization to protect people against cowpox.
D) immunization using a related, less pathogenic organism to give protection against a more pathogenic one.
E) All of the choices are correct.