Adenovirus infects all the cells ,In normal cell to DNA from the virus moves towards to the nucleus which has a antidode p53 tumor suppressor gene, which prevents the viral DNA from replication. If same virus infects the cancer cell ,becuase the mutant P53 gene,it is unable to stop viral DNA replication.so viral DNA continues to multiply and eventually burst the cell release the viruses into the environment. it will infect both normal and cancer cells ,But the normal cells are kind of immune to the virus whereas the cancer cells will continue to be killed by Virus
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