Table 4. Mutation analysis of genome sequences in super-spreader cluster 4.

Accession ID	Location	Origin	Collection date	Number of mutations / % of sequence homology with reference sequence	Nucleotide changes
EPI_ISL_406862	Germany / Bavaria / Munich	NC	2020-01-28	3 / 99%	△ (C241T, C3037T, A23403G)
EPI_ISL_413555	United Kingdom / Wales	NC	2020-02-27	4 / 99%	△ # (C241T, C3037T, A23403G, C14408T)
EPI_ISL_413566	Netherlands / Blaricum	NC	2020-03-02	4 / 99%	△ #
EPI_ISL_413591	Netherlands / Zeewolde	NC	2020-03-02	4 / 99%	△ #
EPI_ISL_413593	Luxembourg	NC	2020-02-29	5 / 99%	△ # C23575T
EPI_ISL_413648	Portugal	Spain	2020-03-01	5 / 99%	△ # C29144T
EPI_ISL_412973	Italy	NC	2020-02-20	6 / 99%	△ # T29867N, G29868N
EPI_ISL_413489	Italy / Milan	NC	2020-03-03	8 / 99%	△ # A187G, A6956C, T29867N, G29868N
EPI_ISL_413602	Finland / Helsinki	NC	2020-03-03	6 / 99%	△ # G22865T, C29585T
EPI_ISL_413572	Netherlands / Haarlem	NC	2020-03-01	7 / 99%	△ # T1666C, C3037T, G25563T
EPI_ISL_413589	Netherlands / Utrecht	NC	2020-03-01	8 / 99%	△ # G2527T, C6428T, G11083T, A25575C
EPI_ISL_413022	Switzerland / Zurich	NC	2020-02-29	7 / 99%	△ # & (C241T, C3037T, A23403G, C14408T, G28881A, G28882A, G28883C)
EPI_ISL_413579	Netherlands / Nootdorp	NC	2020-03-03	7 / 99%	△ # &
EPI_ISL_413587	Netherlands / Tilburg	NC	2020-03-03	7 / 99%	△ # &
EPI_ISL_412912	Germany/Baden-Wuerttemberg	Italy	2020-02-25	8 / 99%	△ # & G10265A
EPI_ISL_413584	Netherlands / Rotterdam	NC	2020-03-03	8 / 99%	△ # & C27046T
EPI_ISL_413647	Portugal	Germany	2020-03-01	8 / 99%	△ # & C27046T
EPI_ISL_413604	Finland / Helsinki	NC	2020-03-03	9 / 99%	△ # & C27046T, T29807C
EPI_ISL_413023	Switzerland / Zurich	NC	2020-02-29	9 / 99%	△ # & A22168C,
EPI_ISL_412972	Mexico / Mexico City	Italy	2020-02-27	10 / 99%	△ # & C13206G, A15807del, G24268del,

△, C²⁴¹T, C³⁰³⁷T, A²³⁴⁰³G; #, C¹⁴⁴⁰⁸T; &, C¹⁴⁴⁰⁸T, G²⁸⁸⁸¹A, G²⁸⁸⁸²A, G²⁸⁸⁸³C.