Anti-Virus program on the server?

From: David Cur. (davidcurtis20@hotmail.com)
Date: 06/14/02 

From: "David Cur." <davidcurtis20@hotmail.com>
Date: Fri, 14 Jun 2002 03:47:59 +0200

Should I install an anti-virus on the server? (used for web only).
if so, which one?

Thanks