Infection Control

Study: Flu vaccine in elderly may be even less effective than originally thought, but don’t stop encouraging shots

Briefings on Infection Control, December 1, 2008

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After reading this article, you will be able to:

  • Describe the results of a new study raising questions about the effectiveness of the flu vaccine forthe elderly
  • Explain why people over the age of 65 should stillreceive a flu shot

A new study in Lancet Infectious Diseases has again raised questions about the value of flu shots in people over the age of 65.

Experts have long recognized that the flu vaccine is less effective in older individuals because their immune systems are weaker and, therefore, unable to provide the strong immune response seen in younger individuals.

But the August 8 study, “Mortality benefits of influenza vaccination in elderly people,” states that flaws in past studies could mean that the vaccine might be even less protective against flu complications and death in this population than previously believed.

 

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