This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable Diseases, Subject name: Social & Preventive Medicine
[{'content': 'Adjuvant used in DPT vaccine is \nSelect and explain. \nA. Zinc, B. Aluminium, C. Copper, D. Magnesium', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e. Aluminium DPT vaccine is of two types : plain & adsorbedAluminium phosphate or Aluminium hydroxide is used as adsorbent.Adsorption increases the immunological effectiveness.WHO recommends use of only adjuvant DPT vaccines in immunization programmes?Also know - Pertussis component in DPT vaccine enhances the potency of the diphtheria toxoid.", 'role': 'assistant'}]