- New Delta variant spotted in Australia for first time Sydney Morning Herald
- New Delta variant detected in Australia news.com.au
- 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
- ‘Immunity wanes’: Study finds vaccinated people easily transmit Delta in households Sydney Morning Herald
- Coronavirus crisis: A UK study has found the Delta strain is easily transmitted by those who are vaccinated The West Australian