Health

COVID-19 Updates: mRNA Vaccines Prime T Cells to Fight Coronavirus Variants

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Irfan Khan/Los Angeles Times via Getty Images
  • More than 3.9 million people have died from COVID-19 globally.
  • More than half of U.S. adults are now fully vaccinated.
  • COVID-19 cases remain high in some parts of the world, like India, where few people have been vaccinated.

Source: healthline