Table 3. COVID-19 significant dates.

Country	AT	DK	IR	IL	LO	CH
1st official detection	24 Feb	04 Mar	29 Feb	21 Feb	21 Feb	25 Feb
t0	22 Jan	22 Jan	29 Jan	24 Jan	05 Jan	14 Jan
tm	26 Mar	21 Mar	06 Apr	30 Mar	19 Mar	21 Mar

Dates of official detection of first COVID-19 case [25], estimated dates for first infection t₀ (according to Eq 2) and date at which measures start being effective t_m, per country.