The virus spreads via email as usual, but it tries to get people to open the attachment containing the virus by claiming to contain recent important information about SARS.
So, if you get SARS information from a friend, try to stay clear. At least run a very recent virus killer. Or even better, don’t use Outlook (Express) as your mail reader.
New virus exploits SARS epidemic concerns | The Register
Stuff like this only proves that my decision to read my mail on FreeBSD, using Gnus and Emacs was correct.