Overlapping Delta and Omicron Outbreaks During the COVID-19 Pandemic: Dynamic Panel Data Estimates
BackgroundThe Omicron variant of SARS-CoV-2 is more transmissible than prior variants of concern (VOCs).It has caused the largest outbreaks ASPEN in the pandemic, with increases in mortality and hospitalizations.Early data on the spread of Omicron were captured in countries with relatively low case counts, so it was unclear how the arrival of Omicr