One of the nicest things about being plugged into the Anti-Virus Information Exchange Network (AVIEN - www.avien.org) is that I can get answers to questions like these in a flash. In today's antivirus world, it is very hard to be aware and up-to-date on all that happens, what products are out there, etc.
Here's the scoop on Citrix: There are several products that will run on a Citrix server, including Trend Micro's ServerProtect and NAV Corporate Edition from Symantec.
Most members of AVIEN who have Citrix systems say that they recommend running an antivirus scanner on the servers. If they say so, I believe them!
For more information on this topic, visit these other SearchSecurity.com resources:
Tech Tip: Marke sure you proliferate security settings on multiple Citrix servers
Best Web Links: Malware
This was first published in November 2002