En Medscape se comenta un artículo de la revista Lancet online sobre la aparente ineficacia de las vacunas contra la influenza.
Researchers Believe Influenza Vaccines Need Improvement
October 25, 2011 — Critical gaps exist in the evidence for the effectiveness of licensed influenza vaccines in the United States, researchers report in an article published online October 25 in The Lancet Infectious Diseases. Individuals who are at risk for medical complications or people who are aged 65 years or older are especially affected by the gaps, the researchers write.
Efficacy and effectiveness of influenza vaccines: a systematic review and meta-analysis
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