Donut,
This "virus alert" someone has sent you is in reality just a spam e-mail.
This kind of chain e-mail contains no real warning.
They are started by pranksters and only propagated by the naive.
You have been had.
Welcome to the internets.
Next time, if an e-mail contains content that looks like it was written to scare you into sending the e-mail to other people; ignore it.
ed: and don't ignore your friend's invitations either.
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