Question

question 1 of 10 which of these technological advances has improved flu vaccines? a. antiviral drugs b. sonograms c. virus strains multiplied in cell cultures d. blood typing

Explanation:

Antiviral drugs treat flu but don't improve vaccines. Sonograms are for imaging and blood - typing is for blood compatibility, not related to vaccine improvement. Virus strains multiplied in cell cultures can lead to more effective and consistent flu vaccines as it's a better way to produce the virus components for vaccines.

Answer:

C. Virus strains multiplied in cell cultures