Fig. 3: An example screenshot of the visualization portal.

The website provides visualization of 21 individual datasets and the merged dataset consisting of 16 datasets. The UMAP plot shows the merged dataset consisting of over 2.5 million cells mapped to the human PBMC CITE-seq reference¹²⁶. Processed datasets can also be downloaded from the website at https://atlas.fredhutch.org/fredhutch/covid. QC, quality control.