“As a vehicle for gene therapy, the retrovirus is modified so that it cannot produce infectious virus after entering the cell.”

“Inside its host cell, the HIV retrovirus uses an enzyme called reverse transcriptase to make a DNA copy of its genetic material.”

“Unlike the retrovirus, adenoviral DNA functions in an extrachromosomal manner.”

“Scientists have long theorized that retroviruses, which were used in the suspended experiments, could trigger cancer.”

“Identification of clonal proviral insertions by oncogenic retroviruses has led to the isolation of novel tumor-associated genes.”

“Among the viruses that are put under the microscope are the adenoviruses, bunyaviruses, retroviruses and the coronaviruses.”