Social & Preventive Medicine The following statements are true about DPT vaccine except – A Aluminium salt has an adjuvant effect B Whole cell killed bacteria of Bordetella peusis has an adjuvant effect C Presence of acellular peusis component D Presence of H.Influenza B component increase its immunolgenecity 💡 Explanation The following statements are true about DPT vaccine except - ✓ Correct Answer: D. Presence of H.Influenza B component increase its immunolgenecity