If you create a technology for one purpose, why not see where else it can be used?
workers for Microsoft Research said they have been using database and antispam software to identify previously unseen patterns in genetic mutations of HIV. Working in collaboration with doctors and scientists from the University of Washington in Seattle and Australia's Royal Perth Hospital, the researchers plan to propose designs for new HIV vaccines based on the newly discovered patterns.
Microsoft: Antispam tools assist HIV research | CNET News.com
