News & Perspective

Mar 11, 2011

Mar 11, 2011

US flu activity decreases

(CIDRAP News) – After several weeks of rising or strong flu activity, levels dropped last week, with most indicators showing declines, the US Centers for Disease Control and Prevention (CDC) said today.

Mar 11, 2011

Study: Some trials overestimated flu vaccine efficacy

(CIDRAP News) – Researchers from the University of Michigan say one measure of flu vaccine efficacy that has been used in a number of past controlled trials is not very accurate, and that this may have led to a degree of overselling of the protection the vaccines provide.

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