Which of the following approach is not used for the treatment of cancer?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → Vaccination
Option (1) Radiation therapy — Used for the treatment of cancer. Tumour cells are irradiated lethally.
Option (2) Immunotherapy — Used for the treatment of cancer. Substances such as α-interferon activate the immune system against the tumour.
Option (3) Vaccination — Not used for the treatment of cancer. Vaccination prevents infectious diseases by building memory against a pathogen; NCERT does not list it among cancer treatments.
Option (4) Surgery — Used for the treatment of cancer. The tumour is removed.
NCERT Extract:
Cancer – “… Treatment of cancer : The common approaches for treatment of cancer are surgery, radiation therapy and immunotherapy. In radiotherapy, tumor cells are irradiated lethally, taking proper care of the normal tissues surrounding the tumor mass. Several chemotherapeutic drugs are used to kill cancerous cells.”