SARS-CoV2 spike mRNA vaccine sequences circulate in blood up-to at least 28 days after COVID-19 vaccination

We describe the detection of Pfizer-BioNTech (BTN162b2) or Moderna (mRNA-1273) vaccine mRNA sequences in plasma from 10 HCV patients up to 28 days after COVID-19 vaccination. These patients had recently received mRNA vaccinations according to the Danish roll-out vaccination plan.