because these medications are the most prevalent antihypertensive medications among all drug classes.13 However, this case series design cannot address the complexity of this question, and the results are unadjusted for known confounders, including age, sex, race, ethnicity, socioeconomic status indicators, and comorbidities such as diabetes, chronic kidney disease, and heart failure. Mortality rates are calculated only for patients who were discharged alive or died by the study end point. This biases our rates toward including more patients who died early in their hospital course. Most patients in this study were still in hospital at the study end point (3066, 53.8%). We expect that as these patients complete their hospital course, reported mortality rates will decline. This study has several limitations. First, the study population only included patients within the New York metropolitan area. Second, the data were collected from the electronic health record database. This precluded the level of detail possible with a manual medical record review. Third, the median postdischarge follow-up time was relatively brief at 4.4 days (IQR, 2.2-9.3). Fourth, subgroup descriptive statistics were unadjusted for potential confounders. Fifth, clinical outcome data were available for only 46.2% of admitted patients. The absence of data on patients who remained hospitalized at the final study date may have biased the findings, including the high mortality rate of patients who received mechanical ventilation older than age 65 years. Conclusions This case series provides characteristics and early outcomes of sequentially hospitalized patients with confirmed COVID-19 in the New York City area. Correction: This article was corrected on April 24, 2020, to clarify the mortality rate of ventilated patients, correct the COVID-19 positive/negative test results, and correct the data for concurrent entero/rhinovirus infection. Adults Hospitalized With Pneumonia in the United States: Incidence, Epidemiology, and Mortality Julio A. Ramirez,1 Timothy L. Wiemken,1 Paula Peyrani,1 Forest W. Arnold,1 Robert Kelley, 1 William A. Mattingly, 1 Raul Nakamatsu,1 Senen Pena,1 Brian E. Guinn,1 Stephen P. Furmanek,1 Annuradha K. Persaud,1 Anupama Raghuram,1 Francisco Fernandez,1 Leslie Beavin,1 Rahel Bosson,1 Rafael Fernandez-Botran,2 Rodrigo Cavallazzi,3 Jose Bordon,4 Claudia Valdivieso,5 Joann Schulte,6 and Ruth M. Carrico1 ; for the University of Louisville Pneumonia Study Group 1 Department of Medicine, Division of Infectious Diseases, 2 Department of Pathology and Laboratory Medicine, and 3 Department of Medicine, Division of Pulmonary, Critical Care, and Sleep Disorders Medicine, University of Louisville, Kentucky; 4 Infectious Diseases, Providence Hospital, Washington, District of Columbia; 5 Office of Vital Statistics, Kentucky Cabinet for Health, Frankfort; and 6 Louisville Metro Department of Public Health and Wellness, Kentucky Background. Understanding the burden of community-acquired pneumonia (CAP) is critical to allocate resources for prevention, management, and research. The objectives of this study were to define incidence, epidemiology, and mortality of adult patients hospitalized with CAP in the city of Louisville, and to estimate burden of CAP in the US adult population. Methods. This was a prospective population-based cohort study of adult residents in Louisville, Kentucky, from 1 June 2014 to 31 May 2016. Consecutive hospitalized patients with CAP were enrolled at all adult hospitals in Louisville. The annual population-based CAP incidence was calculated. Geospatial epidemiology was used to define ecological associations among CAP and income level, race, and age. Mortality was evaluated during hospitalization and at 30 days, 6 months, and 1 year after hospitalization. Results. During the 2-year study, from a Louisville population of 587 499 adults, 186 384 hospitalizations occurred. A total of 7449 unique patients hospitalized with CAP were documented. The annual age-adjusted incidence was 649 patients hospitalized with CAP per 100 000 adults (95% confidence interval, 628.2–669.8), corresponding to 1 591 825 annual adult CAP hospitalizations in the United