The National Center for Advancing Translational Sciences (NCATS) at the National Institutes of Health has leveraged cloud to create the National COVID Cohort Collaborative (N3C) — the largest repository of COVID data in the U.S. Over 70 health organizations contribute to the N3C Data Enclave, which cleans, secures and computes that data all in one place in the cloud. N3C's cloud infrastructure has also been instrumental in not only gathering data from various places but also bringing in different types of data such as mortality and viral variant data.  Dr. Kenneth Gersing, director of informatics in the Division of Clinical Innovation at NCATS, talks about how emerging technologies are helping researchers define long COVID in a more standardized way and how N3C is being used in treating non-COVID related diseases as well as preparing agencies to better handle future health emergencies.