Linked from

The 3 pages that link to Haemophilus influenzae, each with the reason it gives.

• Streptococcus pneumoniaeCompared with: It causes overlapping respiratory syndromes but belongs to a different bacterial group.

• Neisseria meningitidisCompared with: It can produce a clinically similar invasive syndrome but belongs to a different bacterial lineage.

• Bordetella pertussisCompared with: It is another respiratory pathogen, but it belongs to a different bacterial genus and causes different syndromes.