No Significant Difference in Viral Load Between Vaccinated and Unvaccinated, Asymptomatic and Symptomatic Groups When Infected with SARS-CoV-2 Delta Variant

  1. Charlotte B. Acharya
  2. John Schrom
  3. Anthea M. Mitchell
  4. David A. Coil
  5. Carina Marquez
  6. Susana Rojas
  7. Chung Yu Wang
  8. Jamin Liu
  9. Genay Pilarowski
  10. Leslie Solis
  11. Elizabeth Georgian
  12. Maya Petersen
  13. Joseph DeRisi
  14. Richard Michelmore
  15. Diane Havlir
3 evaluations Published on
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Abstract

We found no significant difference in cycle threshold values between vaccinated and unvaccinated, asymptomatic and symptomatic groups infected with SARS-CoV-2 Delta. Given the substantial proportion of asymptomatic vaccine breakthrough cases with high viral levels, interventions, including masking and testing, should be considered for all in settings with elevated COVID-19 transmission.

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