Study shows fully vaccinated individuals can still catch SARS-CoV-2 delta variant and efficiently transmit infection in household settings, including to fully vaccinated contacts.

Community transmission and viral load kinetics of the SARS-CoV-2 delta (B.1.617.2) variant in vaccinated and unvaccinated individuals in the UK: a prospective, longitudinal, cohort study – The Lancet Infectious Diseases

Commentaries:

COVID vaccines effective but household transmission of delta a risk for 1 in 4 – Imperial College London

What is the vaccine effect on reducing transmission in the context of the SARS-CoV-2 delta variant? – The Lancet Infectious Diseases

CoVID-19 vaccines lower risk of infection with delta variant, but infection can still be passed on in household settings – the Lancet

COVID vaccines protect against Delta but don’t fully stop disease spread – CIDRAP

Covid: Double vaccinated can still spread virus at home – BBC

Commentary on Twitter

NEW—#COVID19 vaccines lower the risk of infection with the #DeltaVariant. However, infection can still be passed on in household settings after two doses.

Authors urge unvaccinated to get vaccinated & those eligible to receive a booster. 1/2 https://t.co/jq8DCK69Ww pic.twitter.com/1XzHnKCF01

— The Lancet (@TheLancet) October 28, 2021