All the following are conjugate vaccines Except: (A) Haemophilus influenzae type b, (B) Pneumococcal, (C) Neisseria meningitidis, (D) Hepatitis A
Answer is D. Subunit Vaccines* Haemophilus--purified capsular polysaccharide conjugated to protein* Neisseria meningitidis--capsular polysaccharides, pediatric version is conjugated to protein* Pneumococcal--capsular polysaccharide (7 and 23 serotypes) (pediatric version is conjugated to protein) Ref : Ananthanarayana textbook of Microbiology 9th edition Pgno : 83