Five reasons why COVID herd immunity is probably impossible https://www.nature.com/articles/d41586-021-00728-2
Here’s why herd immunity from Covid is ‘mythical’ with the delta variant https://www.cnbc.com/2021/08/12/herd-immunity-is-mythical-wi...
The developer of the AstraZeneca shot says the Delta variant has made herd immunity impossible because vaccinated people can still transmit the virus https://www.businessinsider.com/delta-variant-made-herd-immu...