Which of these technological advances has improved flue vaccines? a. The Internet
b. MRI scans
c. Virus culturing
d. antiviral drugs

virus culturing

Explanation:

Flucelvax Quadrivalent is the only cell-based inactivated flu vaccine that has used cell-based candidate vaccine viruses (CVVs).  A potential advantage of cell culture technology is that it might permit faster immunity to the virus(s).

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