Moderna said new data from a late-stage clinical trial shows there’s proof of waning COVID-19 vaccine immunity, suggesting COVID-19 vaccine booster shots are needed to stop severe illness from COVID-19.

Does Moderna’s COVID vaccine stop severe COVID?

According to Moderna, data show that the people who were vaccinated between December 2020 and March 2021 had 36% fewer COVID-19 “breakthrough” cases compared to those who were vaccinated during the initial trial for the vaccine, which ran from July 2020 to October 2020.

  • There were 88 breakthrough cases out of 14,746 fully vaccinated people in the recent trial.
  • But there were 162 COVID-19 breakthrough cases among 11,431 people from the original trial participants.

Do you need a booster shot?

Stephen Hoge, president at Moderna, said this is a sign that boosters are needed.

  • Per Reuters, Hoge said the first six months are great, but you can’t count on that being stable out to a year and beyond.”
Related
This COVID-19 vaccine may create twice as many antibodies as Pfizer
Moderna to mix COVID, flu vaccines together in new trial

Moderna’s new data comes as there’s an ongoing debate about the need for booster shots. The Food and Drug Administration said Wednesday that the COVID-19 vaccines in the U.S. offer significant protection against severe disease and death by COVID-19, and there isn’t a need for additional doses, per The Wall Street Journal.

  • “Overall, data indicate that currently U.S.-licensed or authorized COVID-19 vaccines still afford protection against severe COVID-19 disease and death in the United States,” the FDA said, according to CNBC.
View Comments

However, the Biden administration has been calling for the need for additional COVID-19 booster shots, especially for those with underlying medical conditions and who are immunocompromised.

Join the Conversation
Looking for comments?
Find comments in their new home! Click the buttons at the top or within the article to view them — or use the button below for quick access.