Under the Microscope Tea-tree oil – a naturally occurring biocide

Natalie A Thomsen, Katherine A Hammer & Thomas V Riley 1 Division of Microbiology and Infectious Diseases PathWest Laboratory Medicine WA Queen Elizabeth II Medical Centre, Nedlands, WA, 6009 Tel (08) 9346 3228 Fax (08) 9346 2912 Email thomsen@cyllene.uwa.edu.au, triley@cyllene.uwa.edu.au 2 Microbiology and Immunology, School of Biomedical, Biomolecular and Chemical Sciences, The University of Western Australia 35 Stirling Highway, Crawley, WA, 6009 Tel (08) 9346 3228 Fax (08) 9346 2912 Email khammer@cyllene.uwa.edu.au