University Hospitals doctor explains why flu shot effectiveness increased from 10 to 30 percent

160 views · Published 17 January 2018 · 2:05 · Indexed 13 October 2026

Channel: News 5 Cleveland · 2018 · News & Politics

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It wasn't too long ago that we were talking about the flu shot only being ten percent effective. Now, that number has gone up to 30 percent.

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