Allard, Patrick <br/><br/>
COVID-19: The geopolitics of herd immunity 

 -  2021.<br/>							 
<br/><br/> 55 
<br/><br/> "Mass vaccination against COVID-19 identifies several groups of countries: rich countries with rapid vaccination; countries that develop and produce vaccines, but do not prioritize vaccination of their own population; and poorer countries that will only achieve herd immunity by 2022 or 2023. The choice of vaccines is also a differentiating factor. The pursuit of herd immunity through vaccines reveals a real global geopolitical hierarchy."