Viruses are small, rapidly replicating, infectious agents that can only survive within the cells of other organisms.

They can be found in every ecosystem on earth and can infect all lifeforms.

Capable of causing thousands of conditions — from the common cold to the Crimean-Congo hemorrhagic fever — viruses are as successful as they are deadly.

Using their spectacularly successful traits, scientists from Cardiff University in the United Kingdom are currently investigating ways to turn viruses against cancer.

The researchers have successfully “trained” viruses to recognize ovarian cancer and kill it without harming any healthy tissue.