Dr. Rochelle Walensky, the director of the Centers for Disease Control and Prevention, recently revealed what she hopes will happen with the new COVID-19 booster shots.

  • She said on the “Today” show that the CDC is “hopeful” the COVID-19 boosters will “give you a higher level of protection, not just against the delta variant but against a broad range of variants.”
  • She said the CDC hopes the boosters will “decrease the level of virus that you have and make it less transmissible.”
  • Specifically, the new COVID-19 booster shot will “optimize” and “extend that protection longer.”

Walensky said there is some evidence right now “that the vaccine is starting to wane in its effectiveness against infection.”

  • “It’s still holding up relatively well against severe disease and hospitalization, but we’ve also seen that we actually need more protection against the delta virus.”
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On Wednesday, U.S. health officials said all Americans should get COVID-19 booster shots beginning in September. The announcement was made after new data showed that fully vaccinated people can still get COVID-19 and that vaccine efficacy wanes with time.

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