what is the relationship between capsular type of H influenz

what is the relationship between capsular type of H. influenza and pathogenicity?

Solution

Haemophillus influenza is a gram-negative bacterium. It causes the clinical symptoms by the presence of bacterial capsules. The strains of bacterium divided into two groups.

1) Encapsulated strains

2) Non capsulated strains

Encapsulated strains are further classified as a,b,c,d,e and f.

Mainly (>95%) type-b strains cause serious invasive diseases including meningitis, epiglottitis, cellulitis, septic arthritis, pneumonia.

Non encapsulated strains cause otitis media, sinusitis, conjunctivitis, and acute lower respiratory tract infections.