Which of these technological advances has improved flu vaccines a virus strains multiplied in cell cultures b blood typing c antiviral drugs d sonograms

Correct answer choice is:

A. Virus strains multiplied in cell cultures

Explanation:

Flu vaccines produce antibodies to form in the body around two weeks following vaccination. These immunizers give safeguard against disease with the viruses that are in the vaccine. The annual flu vaccine guards against the influenza viruses that analysis shows will be most popular during the forthcoming season.

Viral culture is a lab test in which specimens are set with a cell type that the virus being examined for is capable to contaminate. If the cells show variations, known as cytopathic results, then the culture is positive.

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