What are the histological changes in tissues infected by Haemophilus?
Haemophilus infections often lead to an intense inflammatory response characterized by the infiltration of neutrophils and macrophages. In the case of Haemophilus influenzae type b (Hib) meningitis, histological examination of the meninges may reveal purulent inflammation with numerous neutrophils. In respiratory infections, such as those caused by non-typeable Haemophilus influenzae (NTHi), histological sections of the respiratory epithelium might show hyperplasia, goblet cell metaplasia, and submucosal gland hypertrophy.
