Answer:
This process is called as the malignant transformation, which is described as below;
Malignant transformation:The DNA of which (pro-virus) is integrated into the chromosomal DNA of the host cell. As the pro-virus may lay dormant for a much longer duration, and can hide it self by suppressing its genes. Now as they grow in number, they are able to infect other organs as well because there DNA is also replicating along with the host cell.
In general, cells with integrated pro-viral DNA are converted into cancer cells.
Explanation: