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Flu Vaccine Grown in Dog Kidney Cells Another Failure

flu vaccine

Story at-a-glance -

  • A cell-based flu vaccine, Flucelvax, grown in dog kidney cells became available during the 2017 to 2018 flu season
  • Flucelvax, made by Seqirus, was supposed to offer advantages over egg-based flu vaccines, which are notoriously problematic
  • A study by the U.S. Food and Drug Administration (FDA) revealed the cell-based vaccine worked only a little bit better than the conventional flu shot in protecting seniors — which isn’t saying much
  • While flu vaccines overall had only 24 percent effectiveness in preventing flu-related hospitalizations in people aged 65 and older, the Flucelvax vaccine had an effectiveness rate of only 26.5 percent in that population

By Dr. Mercola

Most flu vaccines in the U.S. are grown in chicken eggs, but during the 2017 to 2018 flu season, a cell-based flu vaccine, Flucelvax, grown in dog kidney cells became available. This vaccine was licensed in 2012 and is approved for individuals aged 4 years and over. As the effectiveness of conventional flu shots continues to leave much to be desired, the new Flucelvax vaccine was touted as a new-and-improved version that would protect more people once flu season hit.


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