Eurosurv. The potential for vaccination-induced herd immunity against the SARS-CoV-2 B.1.1.7 variant

[tetano]

• David Hodgson[SUP]1[/SUP] , Stefan Flasche[SUP]1[/SUP] , Mark Jit[SUP]1[/SUP] , Adam J Kucharski[SUP]1[/SUP] , CMMID COVID-19 Working Group[SUP]1,2[/SUP]

We assess the feasibility of reaching the herd immunity threshold against SARS-CoV-2 through vaccination, considering vaccine effectiveness (VE), transmissibility of the virus and the level of pre-existing immunity in populations, as well as their age structure. If highly transmissible variants of concern become dominant in areas with low levels of naturally-acquired immunity and/or in populations with large proportions of?<?15?year-olds, control of infection without non-pharmaceutical interventions may only be possible with a VE???80%, and coverage extended to children.

full article

https://www.eurosurveillance.org/content/10.2807/1560-7917.ES.2021.26.20.2100428#html_fulltext