What are the pros and cons of qurantine and deleting in an antivirus? Does ClamAV have some particularity on this point? Also, is there some antivirus or anti-malware which allows to clean the infected file? Thanks in advance
With quarantine, you can check the status of your quarantined items, restore or delete individual quarantined items, or simply empty the whole quarantine.
so if you found a false positive you can restore it.
This FQA is helpful: http://clamtk.sourceforge.net/faq.html
All antivirus does clean infected files with different degree based on the type of malware.