Table 1.

Estimates of the growth rate a and the sigmoid’s midpoint t₀ (measured in days after Dec. 14)as well as the transmission fitness advantages f_d and f_c are reported. In the f_c calculation, the Swiss-wide estimate of the reproductive number for the time period 01 January 2021-17 January 2021 is assumed for the R_c. mismatch of the total number of infections and the Viollier AG-based projections.

Region	Dataset	a	t0	fd = exp(ag) − 1	fc = ag/Rc
Switzerland	Viollier	0.08 [0.08; 0.09]	65 [64; 66]	0.49 [0.47; 0.52]	0.48 [0.46; 0.50]
Switzerland	Risch	0.08 [0.07; 0.08]	69 [68; 70]	0.45 [0.43; 0.48]	0.45 [0.43; 0.47]
Central Switzerland	Viollier	0.09 [0.07; 0.11]	73 [67; 79]	0.51 [0.37; 0.66]	0.50 [0.38; 0.62]
Espace Mittelland	Viollier	0.07 [0.07; 0.08]	64 [62; 66]	0.41 [0.37; 0.45]	0.41 [0.38; 0.44]
Grossregion Nordwestschweiz	Viollier	0.09 [0.08; 0.10]	67 [65; 68]	0.53 [0.48; 0.59]	0.52 [0.47; 0.56]
Grossregion Tessin	Viollier	0.07 [0.04; 0.11]	77 [69; 86]	0.42 [0.20; 0.64]	0.43 [0.24; 0.61]
Grossregion Zurich	Viollier	0.09 [0.08; 0.10]	68 [65; 70]	0.55 [0.47; 0.62]	0.53 [0.47; 0.58]
Lake Geneva region	Viollier	0.10 [0.09; 0.11]	54 [52; 56]	0.61 [0.51; 0.71]	0.57 [0.50; 0.65]
Lake Geneva region	HUG	0.09 [0.09; 0.10]	52 [51; 53]	0.56 [0.50; 0.62]	0.54 [0.49; 0.59]
Ostschweiz	Viollier	0.10 [0.08; 0.11]	65 [62; 68]	0.58 [0.46; 0.69]	0.55 [0.46; 0.64]