The English version of avast! calls it the Chest or Virus Chest, everywhere. Some translators may have decided to translate it otherwise (e.g. as Quarantine) in non-English versions of avast!.
Igor, I confirm. No problems of homogeneity into English version.
In Portuguese (Brasil), in fact, Chest was translated into Quarentena
(similar to Quarentine).
Finaldeathh, do you need more help?