The pioneer in concept of specific protection by vaccine was -
Ans. is 'a' i.e., Chineseo The Chinese were early poineers of immunizations. They practiced voriolation to prevent small pox.o Similar practice is also known to be prevalent in the early Ayurveda period, which was quoted by Edward Jenner to the Royal society to get approval for first proposed small pox vaccine.
Chinese
Robertkoch
Ambroise pare
Louis Pasteur
Concept of Control