Jenner prepared the vaccine for small pox by using

Options :
  1. attenuated pathogen of small pox
  2. smaller doses of small pox virus
  3. attenuated form of cow pox virus
  4. material from cow pox pustule
Answer and Explanation :-

Answer: Option 4


Sorry there is no explanation for this answer. Please help others by posting your response below

How do you rate this queston?  Very Easy  Easy  Average  Above Average  Tough

Previous Question : The term vaccine was introduced by

Next Question : The relation between disease and pathogen was clearly depicted by

Click here for online test on Medical Zoology


 (Getemail alerts when others member replies)

My dear Watson," said [Sherlock Holmes], "I cannot agree with those who rank modesty among the virtues. To the logician all things should be seen exactly as they are, and to underestimate one's self is as much a departure from truth as to exaggerate one's own powers.
-Arthur Conan Doyle The Adventure of the Greek Interpreter