The raw metagenomic sequencing reads (184 SRA experiments, 176 BioSamples, ~4.6 Tbases) underlying S-16 - Liu, Gao et al. — Surveillance of SARS-CoV-2 at the Huanan Seafood Market (Nature) / S-15 - China CDC Research Square preprint — Huanan market environmental & animal surveillance, submitted to NCBI 2023-03-25 (mirrored on China’s NGDC GSA under CRA010170). This is the actual sequence-read data every metagenomic reanalysis in this slice (Crits-Christoph, Bloom, Débarre) operates on — none of these reanalyses used data outside what’s in this release. The data’s path to release is itself contested: an earlier partial version appeared on GISAID in Jun 2022 without being announced, was noticed by outside researchers in Jan/Feb 2023, prompting the fuller NCBI/NGDC release seen here. relevance_note: the primary data substrate for essentially every other node in this slice — without this release none of the raccoon-dog/wildlife-DNA reanalyses would exist.