COVID-19 first responders (IMAGE) Boston Children's Hospital Caption These maps represent gene expression in cells recovered from COVID-19 test swabs, based on single-cell RNA sequencing of more than 32,000 cells from 58 people. Each point in the maps represents an individual cell. At left, cell types from the nasopharynx are color-coded and arranged such that those with similar patterns of gene expression are in closer proximity. At right, red and blue colors indicate cell types that are enriched in COVID-19 (shown in red) and in healthy controls (blue). Credit BioRxiv Feb 20, 2021, https://doi.org/10.1101/2021.02.20.431155 Usage Restrictions Please credit as indicated License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.