> Vaccination is likely an option for long term COVID-19 herd immunity. To achieve herd immunity for measles at least 90-95% of the population need to be vacci

> Vaccination is likely an option for long term COVID-19 herd immunity. To achieve herd immunity for measles at least 90-95% of the population need to be vaccinated. A disease like polio is less contagious, and 80-85% of the population would need to be vaccinated for herd immunity to work. https://www.ovg.ox.ac.uk/news/herd-immunity-how-does-it-work https://www.ovg.ox.ac.uk/news/herd-immunity-how-does-it-work It suggests our immunity to SARS-CoV-2 does not last very long at all — as little as two months for some people. If this is the case, it means a potential vaccine might require regular boosters, and herd immunity might not be viable at all. https://www.medrxiv.org/content/10.1101/2020.07.09.20148429v1.full.pdf https://www.medrxiv.org/content/10.1101/2020.07.09.20148429v... Can't get 80% people to wear a mask, much less seasonal vaccinations.