An<unk>  is a virus used to treat cancer due to their ability to specifically infect cancer cells, while leaving normal cells unharmed. Viruses can be engineered to be replication competent only in cancer cells, leading to cell lysis and dose amplification at the site of the tumour. Replication competent viruses can efficiently deliver anticancer genes to cancer cells and also have an inherent ability to lyse tumour cells.
Oncolytic virus
Helper dependent virus
Endornavirus
Marnavirus
Arenavirus
Picornavirus
Benyvirus
RNA virus