You're reading: Washington Post: Rise of delta variant and waning immunity are fueling breakthrough infections

Officials in the Biden administration responsible for communicating with the public have repeatedly said this has become a “pandemic of the unvaccinated.” Such words may not ring true to people who got their coronavirus shots and still became sick. A growing number of studies suggest that coronavirus vaccines continue to provide strong protection against severe disease and hospitalization, but their ability to prevent mild illness is less robust today than the original clinical trial studies demonstrated a year ago.

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