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9 Aug 2011

Researchers Work on Improving Influenza Vaccination for Broader Protection

From a public health perspective, an ideal influenza vaccine would protect against multiple strains of the virus, regardless of their hemagglutinin structure.

A research team led by Stephen C. Harrison, PhD, chief of the Division of Molecular Medicine at Children's Hospital Boston, report their work and its implications for improving influenza vaccination this week in the Early Edition of the Proceedings of the National Academy of Sciences.

 

With each passing season, the two primary components of the influenza virus's outer coat, neuraminidase and hemagglutinin (the annual flu vaccine's primary target), mutate, allowing the virus to dodge any anti-flu immunity an individual may have generated in previous years. This evasion strategy, called antigenic drift, is why a new flu vaccine is necessary every year, a process that can take upwards of seven months.

 

From a public health perspective, an ideal inf

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