It is currently uncertain[a,b] if the vaccines prevent the spread of corona, and logically therefore it is unknown if the vaccinations contribute towards herd i

It is currently uncertain[a,b] if the vaccines prevent the spread of corona, and logically therefore it is unknown if the vaccinations contribute towards herd immunity or not. [a]: https://www.wsj.com/articles/can-you-still-spread-covid-19-after-you-get-vaccinated-11610379107 https://www.wsj.com/articles/can-you-still-spread-covid-19-a... [b]: https://www.nytimes.com/2020/12/08/health/covid-vaccine-mask.html https://www.nytimes.com/2020/12/08/health/covid-vaccine-mask...