Summary of 7/4/22 on Covid Variants (The recent Fortune article is a stripped-down version of the 7/4 article.)
Original Wuhan strain’s R-naught value (R0) was around 3.3 – that is, 3.3 people infected by each infected person. Delta was up at 5.1. BA.1 (Omicron) at 9.5. Adrian Esterman, U of South Australia professor in “The Conversation” on 7/4/22, made the calculations. They apparently are based upon the laboratory studies of the variants, and then extrapolated to derive the R0 number used. (See below for “effective R0")
