microbiology

Last reviewed 10/2018

The organisms usually implicated are bacteria, including: (1)

  • Streptococcus pneumonia
  • Staphylococci
  • Haemophilus influenzae
  • {beta}-hemolytic and {alpha}-hemolytic streptococci
  • Klebsiella pneumonia
  • Escherichia coli
  • anaerobes

Less commonly, viruses are implicated, for example:

  • rhinovirus
  • parainfluenza virus
  • influenza virus

Reference: