This week's View focuses on the coronavirus disease 2019 (COVID-19) resources on ACC.org, including key points from the American College of Physicians on the antibody response and role in conferring natural immunity after severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and summaries of articles on whether ABO and rhesus blood groups are associated with risk of SARS-CoV-2 infection and severe COVID-19 and the characteristics, diagnostics, and outcomes of patients with acute ischemic stroke and COVID-19 in the United States.