Table 2. Comparison by week of the first detected influenza-negative ILI time series outlier and the first reported COVID-19 case and peak by country.

Country	Week of detected time series outlier (type)*	Week of first reported COVID-19 case	Week of first reported COVID-19 peak	Difference in weeks between outlier and reported peak
HICs
France	09-Mar-2020 (TC)	20-Jan-2020	30-Mar-2020	3
Germany	30-Nov-2020 (TC)	27-Jan-2020	30-Mar-2020	−35
Netherlands	—	24-Feb-2020	06-Apr-2020	—
Poland	13-Jan-2020 (AO)	02-Mar-2020	06-Apr-2020	12
Spain	13-Jan-2020 (TC)	20-Jan-2020	23-Mar-2020	10
United Kingdom	09-Mar-2020 (AO)	27-Jan-2020	20-Apr-2020	6
United States	09-Mar-2020 (TC)	20-Jan-2020	06-Apr-2020	4
U-MICs
Argentina	—	02-Mar-2020	19-Oct-2020	—
Brazil	04-May-2020 (TC)	24-Feb-2020	27-Jul-2020	12
Colombia	02-Mar-2020 (TC)	02-Mar-2020	10-Aug-2020	23
Indonesia	—	02-Mar-2020	21-Sep-2020	—
Mexico	23-Mar-2020 (TC)	17-Feb-2020	20-Jul-2020	17
Peru	13-Jan-2020 (AO)	02-Mar-2020	01-Jun-2020	20
South Africa	—	02-Mar-2020	13-July-2020	—
L-MICs
Bangladesh	—	02-Mar-2020	22-Jun-2020	—
Bolivia	16-Mar-2020 (TC)	09-Mar-2020	03-Aug-2020	20
India	23-Mar-2020 (TC)	27-Jan-2020	14-Sep-2020	25
Republic of Moldova	09-Mar-2020 (AO)	02-Mar-2020	15-Jun-2020	14
Nepal	10-Feb-2020 (AO)	20-Jan-2020	22-Jun-2020	19
Philippines	13-Jan-2020 (TC)	27-Jan-2020	30-Mar-2020	11
Ukraine	16-Mar-2020 (AO)	02-Mar-2020	04-May-2020	7
LICs
Afghanistan	—	24-Feb-2020	01-Jun-2020	—
Madagascar	13-Jul-2020 (TC)	16-Mar-2020	25-May-2020	−7
Mozambique	30-Mar-2020 (AO)	23-Mar-2020	01-Jun-2020	9
Uganda	24-Aug-2020 (TC)	16-Mar-2020	01-Jun-2020	−12

*Additive outlier (AO) or temporary change outlier (TC).

HICs, high-income countries; L-MICs, lower-middle-income countries; LICs, low-income countries; U-MICs, upper-middle-income countries.