COVID-19 herd immunity: where are we? #MMPMID32908300
Fontanet A; Cauchemez S
Nat Rev Immunol 2020[Oct]; 20 (10): 583-584 PMID32908300show ga
Herd immunity is a key concept for epidemic control. It states that only a proportion of a population needs to be immune (through overcoming natural infection or through vaccination) to an infectious agent for it to stop generating large outbreaks. A key question in the current COVID-19 pandemic is how and when herd immunity can be achieved and at what cost.