[Preprint] Study shows symptomatic breakthrough infections are probably less transmissible than SARS-CoV-2 infections in unvaccinated individuals.

Virological and serological kinetics of SARS-CoV-2 Delta variant vaccine-breakthrough infections: a multi-center cohort study – medRxiv

Commentary on Twitter (thread – click for more)

Did you hear vaccinated people with Delta “have just as much virus in their nose so are just as infectious as unvaccinated”?

Turns out vaccinated people have significantly less culturable virus present at the same Ct count

They are LESS INFECTIOUS ? https://t.co/OX0Ul0ntWc pic.twitter.com/3vDQSJ6j84

— Alasdair Munro (@apsmunro) August 22, 2021