Another view casting doubt on the effectiveness of the flu shot:
>>Doctors Intrigued and Troubled by Findings
In an accompanying editorial, Drs. John Treanor and Peter Szilagyi wrote a response to the findings for the most recent study showing lower effectiveness with back-to-back flu shots.
“As we are currently struggling through one of the most vigorous influenza seasons in recent memory, the apparent failure of influenza vaccine under optimal conditions seen in this study is indeed troubling,” they wrote. 6
As usual, further study on flu vaccine effectiveness is necessary. There are a lot of conflicting data available. However,
the growing number of studies showing low overall effectiveness, waning immunity and a negative effect of prior-year vaccination cast doubt on influenza vaccine policies and strategies, especially when influenza vaccinations now are being required as a condition of employment for health care workers.
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In 2010, PLoS Medicine published an analysis of Canadian epidemiological studies suggesting that people, who had received seasonal flu shots the year before the 2009 H1N1 swine flu pandemic, had an increased risk of becoming infected with the pandemic swine flu.
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Effectiveness of Flu Vaccine Raises More Red Flags