Microbiology The following statements are true about DPT vaccine except : A Aluminium salt has an adjuvant effect B Whole killed bacteria of Bordetella pertussis has an adjuvant effect C Presence of acellular pertusis component increases its immunogenecity D Presence of H.influenza type B component increases its immunogenicity 💡 Explanation The following statements are true about DPT vaccine except : ✓ Correct Answer: D. Presence of H.influenza type B component increases its immunogenicity