Q. Which among the following diseases have been successfully eradicated from India through immunization?
  1. Polio
  2. Smallpox
  3. Chicken Pox
  4. Leprosy
Select the correct option from the codes given below:

Answer: Only 1 & 2
Notes: Only Smallpox and Polio have been eradicated from India through extensive immunization efforts. Smallpox was eradicated in 1980, while polio was declared eradicated in 2014. Chicken Pox and Leprosy have not been eradicated; cases still occur, and while vaccines exist, eradication has not been achieved for these diseases.