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Emory study: 2023–24 COVID vaccine gives lasting antibodies (Level A1) — a close up of a bottle of medicine on a table

Emory study: 2023–24 COVID vaccine gives lasting antibodiesCEFR A1

2 Dec 2025

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Adapted from Emory University, Futurity • CC BY 4.0

Photo by Mufid Majnun, Unsplash

Level A1 – Beginner
2 min
68 words
  • Emory scientists studied a new COVID vaccine.
  • They tested 24 people who got the 2023–24 shot.
  • The vaccine targets the Omicron XBB.1.5 variant.
  • Scientists measured different antibodies in blood.
  • Many antibodies stayed more than 16 months.
  • People made antibodies that see two virus types.
  • The 2023–24 shot had one spike protein.
  • Earlier shots used two spike proteins.
  • Updated vaccines can help older and sick people.

Difficult words

  • scientists — a person who studies science and does research
  • vaccine — a medicine that helps the body fight a virus
  • variant — a different form of the same virus
  • antibodies — a protein in blood that fights a virus
  • measured — to find the amount or size of something
  • spike protein — a part of the virus used to enter cells
    spike proteins

Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.

Discussion questions

  • Have you had a COVID shot?
  • Do you think vaccines help older people?

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