News & Perspective

Feb 11, 2011

Feb 11, 2011

Study showing high effectiveness for H1N1 vaccine stirs debate

(CIDRAP News) – A recent case-control study estimates that the adjuvanted pandemic H1N1 influenza vaccine used in Canada was effective 93% of the time, a substantially higher figure than seen in several other studies and one that has raised some eyebrows among other flu vaccine researchers.

Feb 21, 2013

Feb 21, 2013

CDC midseason check finds scant flu vaccine effect for seniors

(CIDRAP News) – Influenza vaccine over the past few months has provided moderate protection overall but didn't have a significant impact on protecting seniors, a study from the US Centers for Disease Control and Prevention (CDC) revealed today.