Current Microbiology

, Volume 56, Issue 1, pp 89–92 | Cite as

Effect of Eucalyptus Essential Oil on Respiratory Bacteria and Viruses

  • Claudio CermelliEmail author
  • Anna Fabio
  • Giuliana Fabio
  • Paola Quaglio


The activity of Eucalyptus globulus essential oil was determined for 120 isolates of Streptococcus pyogenes, 20 isolates of S. pneumoniae, 40 isolates of S. agalactiae, 20 isolates of Staphylococcus aureus, 40 isolates of Haemophilus influenzae, 30 isolates of H. parainfluenzae, 10 isolates of Klebsiella pneumoniae, 10 isolates of Stenotrophomonas maltophilia and two viruses, a strain of adenovirus and a strain of mumps virus, all obtained from clinical specimens of patients with respiratory tract infections. The cytotoxicity was evaluated on VERO cells by the MTT test. The antibacterial activity was evaluated by the Kirby Bauer paper method, minimum inhibitory concentration, and minimum bactericidal concentration. H. influenzae, parainfluenzae, and S. maltophilia were the most susceptible, followed by S. pneumoniae. The antiviral activity, assessed by means of virus yield experiments titered by the end-point dilution method for adenovirus, and by plaque reduction assay for mumps virus, disclosed only a mild activity on mumps virus.


Minimum Inhibitory Concentration Eucalyptus VERO Cell Haemophilus Influenzae Maintenance Medium 
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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Claudio Cermelli
    • 1
    Email author
  • Anna Fabio
    • 2
  • Giuliana Fabio
    • 3
  • Paola Quaglio
    • 1
  1. 1.Dipartimento di Scienze di Sanità PubblicaUniversità di Modena e Reggio EmiliaModenaItaly
  2. 2.Laboratorio di MicrobiologiaPoliclinico di ModenaModenaItaly
  3. 3.Dipartimento Integrato di Servizi Diagnostici e di Laboratorio e di Medicina di LegaleUniversità degli Studi di Modena e Reggio EmiliaModenaItaly

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