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Haemophilus Influenzae

See Also
1. Bacterial Pneumonia
Epidemiology
1. Second most common cause community acquired Pneumonia
  1. Pneumococcal Pneumonia is the most common cause
2. Frequently complicates Chronic Bronchitis
Symptoms and Signs
1. Similar to Pneumococcal Pneumonia
Labs
1. Gram Stain
  1. Pleomorphic Gram Negative Rods
Management: Antibiotic
1. Beta-lactamase Negative Haemophilus Influenzae
  1. Ampicillin IV or Amoxicillin PO
  2. Azithromycin (Zithromax)
  3. Clarithromycin (Biaxin)
  4. Trimethoprim Sulfamethoxazole (Bactrim or Septra)
  5. Doxycycline
2. Beta-lactamase Positive Haemophilus Influenzae
  1. Amoxicillin-clavulanate (Augmentin)
  2. Second generation Cephalosporin (e.g. Cefuroxime)
  3. Third generation Cephalosporin (e.g. Cefotaxime)
  4. Azithromycin (Zithromax)
  5. Clarithromycin (Biaxin)
  6. Fluoroquinolone (e.g. Ciprofloxacin)
References
1. Gilbert (2001) Sanford Antimicrobial, p. 28

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This page was written by Scott Moses, MD. This page was last revised before 5/10/08, prior to consistent tracking of revision date. This page was last published on 5/10/2008. Please send comments and questions to the editor. Contact information may be found on the page About the Family Practice Notebook. These pages are best viewed with Microsoft Internet Explorer 6.0.