Which of the following is a risk associated with using viral vectors in gene therapy? Select one: a. The foreign DNA may not integrate into the genome of the targeted cell. b. The virus may cause disease in the patient. c. The virus may not infect the host cell. d. The virus may not be able to be cultivated to high titer. Which of the following is a risk associated with using viral vectors in gene therapy? Select one: a. The foreign DNA may not integrate into the genome of the targeted cell. b. The virus may cause disease in the patient. c. The virus may not infect the host cell. d. The virus may not be able to be cultivated to high titer. Which of the following is a risk associated with using viral vectors in gene therapy? Select one: a. The foreign DNA may not integrate into the genome of the targeted cell. b. The virus may cause disease in the patient. c. The virus may not infect the host cell. d. The virus may not be able to be cultivated to high titer.