[Hampshire] Anti-virus comparison

Hello folks

I'm trying to find out how Linux server-based anti-virus programs
compare in terms of their effectiveness at find and dealing with viruses
in files and emails. Sites like http://www.av-comparatives.org/ don't
seem to mention Linux.

In particular I'd like to know how well ClamAV rates against the likes
of AVG and F-Secure.

Does anyone know of a source of objective comparisons of Linux AV products?

cheers

Chris
-- 
Chris Dennis                                  cgdennis@???
Fordingbridge, Hampshire, UK