pizzaco
Under Configuration -> Antivirus (ClamAV), there is an Enabled/Disable setting for "Quarantine infected files". Does "Disabled" mean that it will delete files, or does it mean it will just log?
Quarantine enabled will move the infected files, which can cause other issues with false positives ie having to move files back one by one etc.
Disabling the quarantine function will not move (or delete) the files, but will still report that (supposedly) infected files were found.
You can manually review, rescan, move or delete them.
My personal preference is to have quarantine disabled, as it is too much bother when false positives occur.
Always of course have secondary anti virus measures on workstations.