(Not the cause of influenza as it was once thought to be), H. flu is a bacteria capable of causing ear infections, meningitis, cellulitis (soft tissue infection), upper respiratory infections, pneumonia and other infections, especially in young children.
HAEMOPHILUS INFLUENZAE (ALSO H. FLU)
Meaning of HAEMOPHILUS INFLUENZAE (ALSO H. FLU) in English
English dictionary of medicine. Английский словарь медицины. 2012