Keep doing that until it works. If it never does, boo-hoo. Viruses are real. Call it a hoax, and delete it. Passing it along will only give a hacker somewhere the opportunity to attach a virus to it, and send it on its way.
Viruses lurk in files that are downloaded and then executed.
There are new versions coming at you everyday, including those which are activated by merely opening the E-Mail. You are foolish, indeed, not to have the latest virus protection program, and keep it updated. Well-intentioned people just keep passing it around until every telephone wire, every computer, every satellite, is clogged by it, jammed full of useless information. A geek nerd no-brain jerk somewhere will attach a virus to it. Giant internet conglomerates like Microsoft and AOL do not send out virus warnings by E-Mail.