Invasive Haemophilus influenzae Serotype a Disease in the H. influenzae Serotype b Conjugate Vaccine Era: Where Are We Going?

An editorial is presented on the Invasive Haemophilus influenzae Serotype a Disease in the H. influenzae Serotype b Conjugate Vaccine Era. The article discusses that Encapsulated strains of the gram-negative pathogen Haemophilus influenzae are categorized into 6 serotypes on the basis of antigenically distinct polysaccharide capsules; and it is also important to consider that Indigenous populations experience environmental factors.