Ziyad Al-Aly, MD
In this study of 5.8 million people 41k with reinfection 444k with 1 infection (no reinfection) 5.3 million non-infected controls Compared to no reinfection, reinfection increased risk of death, hospitalization, and other adverse health outcomes https://www.nature.com/articles/s41591-022-02051-3
