☰

Increases in COVID-19 are unrelated to levels of vaccination across 68 countries and 2947 counties in the United States

https://link.springer.com/content/pdf/10.1007/s10654-021-00808-7.pdf

S. V. Subramanian and Akhil Kumar
September 30, 2021
European Journal of Epidemiology

This is a correspondence

© Springer Nature B.V. 2021

 

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breakthrough cases,clinical cases,COVID-19,vaccines