TMPRSS4 and COVID-19: While CTD primarily focuses on environmental chemical-related diseases (as opposed to infectious diseases), in March 2020, CTD launched a rapid response curation task force to text mine and curate breaking literature for COVID-19, resulting in new content from >350 scientific articles for associated CTD diseases (e.g. COVID-19, Coronavirus Infections and Severe Acute Respiratory Syndrome) key host genes (e.g. ACE2, TMPRSS4 and numerous cytokines), molecular mechanisms and phenotypes (e.g. viral life cycle and viral entry), and potential therapeutics.