NSW is the ideal setting to measure the severity of Omicron, and it is showing a CFR for Omicron that is <1/2 of Delta
Five reasons it's ideal:
*Prior infection is irrelevant (~2-3% of NSW is prior infected)
*Delta cases were steady through Nov, making a stable baseline CHR

1/15 pic.twitter.com/qVT0QxMzSl

— Andrew Lilley (@andrewlilley_au) December 21, 2021