PROJECT SUMMARY/ABSTRACT for the Recruitment and BioBanking Core The Recruitment and Biobanking Core (RBC) will serve as a Resource Support Core for 3 full Research Projects. This core provides a standardized system for patient identification and recruitment, longitudinal follow- up using active and passive methodologies, biospecimen collection, tracking, processing, storage, and distribution; access to state-of-the-art laboratory technologies provided in Core 2; linkage to medical records and other relevant external databases; computational and statistical support; and enables future research in collaboration with SeroNET and beyond. Importantly, this core leverages already implemented cutting-edge initiatives underway at Cedars-Sinai, namely: (1) Biobanking Research Protocol that universally permits patients to participate in research by utilizing and storing their biospecimens and conducting follow-up procedures for research purposes; (2) Cedars-Sinai Accelerator which has funded start-up companies (e.g., Hawthorne Effect) to develop and implement integrated technological platforms to provide timely, accurate data from patients as well as networks to facilitate remote data and biospecimens collections; and (3) Cedars-Sinai’s Employee Cohort that has conducted timely repeated questionnaire assessments, repeated biospecimen collection and repeated SARS-CoV-2 testing on >6,000 Essential Health Care Workers. The RBC will merge these activities into a centralized approach with the following goals: 1. Expand Recruitment and Prospective Follow-Up: Cedars-Sinai COVID-19 Risk Associations and Longitudinal Evaluation (CORALE) study leverages the expansive Cedars- Sinai network including two large medical centers and multiple outpatient clinics. The fully integrated Epic based electronic health record (EHR), known as CS-Link, allows for rapid connection with over >1M individuals and permits digital enrollment, consent and data entry and tracking via a virtual patient portal. Cedars-Sinai’s diverse catchment area in central Los Angeles allows a unique opportunity, unparalleled in other parts of the U.S., to bring together large diverse populations (including large numbers of Hispanics/Latinos and African Americans). Electronic communication, data entry and remote biospecimen collection capabilities enable rapid and cost- efficient longitudinal follow-up. 2. Biospecimen Collection, Processing and Storage: We will collect, process, store, and track all biospecimens using LabvantageTM, a user-friendly laboratory tracking system already implemented and supported directly by the Cedars-Sinai Biobank and Translational Research Core Laboratory. 3. Data Management, Linkage and Analyses: We will link demographic, clinical, epidemiologic, and outcomes data from our centralized EHR with the biospecimens and participant reported data. Our bioinformatic and computational shared resources will provide analytical support. 4. Expand Capacities for Future Research: We will provide access to state-of-the-art technologies available through the integration of our Core with our existing Shared Resources and enable data sharing with internal and external investigators in SeroNET.