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SARS Survivors Offer Clues on Protecting Against Future Scourges

  • Those given Covid-19 vaccines produced unexpected antibodies
  • Prior infection plus immunization may lead to future therapies
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SARS Survivors Give Antibody Clues

A serendipitous discovery in survivors of the 2003 SARS outbreak offers important clues about how next-generation vaccines might counter dangerous coronavirus variants now and protect against future pandemics.

The signs were found in the blood of people who contracted the virus that causes severe acute respiratory syndrome, or SARS, almost 20 years ago. Survivors who recently received two shots of Pfizer Inc.’s Covid-19 vaccine developed antibodies that not only blocked the current virus and its variants, they countered related pathogens that could spawn future outbreaks.