Which vaccine in the national pediatric immunization schedule protects against childhood epiglottitis, bacterial meningitis, and septic arthritis caused by an encapsulated gram-negative coccobacillus?
Answer and explanation
Correct answer: D. Haemophilus influenzae type b (Hib) conjugate vaccine
- Step 1: Haemophilus influenzae type b (Hib) conjugate vaccine provides active immunity against invasive infections caused by encapsulated Hib, including acute epiglottitis, meningitis, pneumonia, and septic arthritis in children under 5 years.
- Step 2: Universal vaccination has reduced invasive Hib disease by over 99%.
Answer
Haemophilus influenzae type b (Hib) conjugate vaccine.
Why not the others: 'MMR vaccine' protects against measles, mumps, and rubella viral infections; 'BCG' protects against disseminated and meningeal tuberculosis; 'IPV' protects against poliomyelitis enterovirus.
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