Table 2. Sequencing technologies used for SARS-CoV-2 sequencing of German and international samples.

Data based on 1.2 million and 15.5 million whole-genome sequences submitted to the German DESH portal (“Deutscher Elektronischer Sequenzdaten-Hub”) and to the GISAID database, respectively (accessed: May 22, 2023). To the best of our knowledge, we corrected typos such as Nanonopore, Nasnopore, and Illunima in the GISAID metadata and summarized the available terms into the broader categories shown in this table ( e.g., NextSeq500 ⇒ Illumina). Entries we could not assign to one of the listed sequencing technologies were added to the Other/Unknown category. Please note that most German DESH sequences are also part of the GISAID data set. # – Number of sequences, % – Percentage of sequences on total data set.

Sequencing technology	# DESH	% DESH	# GISAID	% GISAID
Illumina	1,115,501	90.91	12,240,675	78.57
Nanopore	75,358	6.14	1,984,505	12.73
SMRT PacBio	0	0	573,214	3.67
Ion Torrent	29,450	2.40	349,001	2.24
MGI DNBSEQ	0	0	177,480	1.13
Sanger	0	0	57,820	0.37
Other/Unknown	6,727	0.54	195,833	1.25
Total	1,227,036	100	15,578,528	100