Photo ) H. influenzae in the sputum .
(Dr. Rebecca Buxton, Department of Pathology, University of Utah)
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Haemophilus influenzae
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This bacteria( = Pfeiffer's bacilli) once thought to be a cause of influenza(=Flu).
i) Microscopic findings: round or lods in shape, Gram stain(-)
ii)Type: divided into non-capsular type and capsular type.
Capsular type: Serovar (5 types; a, b, c, d, e, f )
✭ type b is predominant, especially in acute meningitis and epiglottis.
iii) Type of diseases in childhood:
1) common cold: no data is available.
2) otitis media: non-capsular type is common.
3) acute epiglottis: very few in Japan.
4) bronchitis & pneumonia: non-capsular type is common.
5) meningitis: type b is dominant in Japan.
is available.
Any questions: write to Keiji Hagiwara, MD
E-mail: keijihagiwara@gmail.com