For the study, researchers analyzed blood samples from six individuals who had been vaccinated against bird flu. Examination of the samples revealed a type of white blood cell that secretes antibodies when reacting to various strains of influenza. Researchers were able to classify the respective genetic sequences of the three classes of antibodies detected.
This knowledge could lead to the development of a universal flu vaccine effective against multiple subtypes of influenza, which would eliminate the need to update the vaccine each year.
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