Abstract
Several types of defined spores with particular characteristics have been developed by Dr Cheung. The performance of these spores is reliable and superior to other biological indicators currently in use for validating sterilization process normally required by pharmaceutical, medical and food industries.

Contact Information
Mr H Y Wong
Director, Technology Transfer Office
City University of Hong Kong
83 Tat Chee Avenue
Kowloon, Hong Kong
Tel : (852) 2788 8428
Fax : (852) 2788 9119
Email : hy.wong@cityu.edu.hk