Question

Which of the following is a polysaccharide vaccine?

• A. \( \text{Anthrax vaccine} \)
• B. \( \text{Rabies vaccine} \)
• C. \( \text{Hepatitis A} \)
• D. \( \text{Hib vaccine} \)

Hint:

Conjugate polysaccharide vaccines improve immunogenicity in infants, ensuring long-term protection against bacterial diseases.

Answer 1

The Correct Option is D

The Haemophilus influenzae type B (Hib) vaccine is a polysaccharide vaccine that protects against bacterial infections. It contains purified polysaccharides conjugated to proteins, enhancing immune response and memory. Polysaccharide vaccines are effective against encapsulated bacteria, such as pneumococcal and meningococcal infections.