New Online

This study compares pregnancy outcomes, including rates of stillbirth (fetal death ≥24 weeks’ gestation), preterm and cesarean delivery, and neonatal unit admission in the months preceding vs during the 2020 COVID-19 pandemic at a London university hospital.

This narrative review discusses what is currently known about the pathophysiology, epidemiology, diagnosis, management, prognosis, and prevention of coronavirus disease 2019 (COVID-19).

This JAMA Patient Page provides an overview of COVID-19 transmission, symptoms, diagnosis, disease course, and treatment.

This case series describes COVID-19 symptoms persisting a mean of 60 days after onset among Italian patients previously discharged from COVID-19 hospitalization.

In this narrative medicine essay, a urology fellow offers 5 actions the medical community should take to eliminate racial injustice and health disparities in the United States.

In this narrative medicine essay, a gastroenterologist recalls a microagression from a patient during fellowship training and realizes the fault lay with the medicine profession and calls for antiracist training as one measure in dismantling race-based health disparities.

This Medical News story discusses the challenge of minimizing the risk of COVID-19 in kindergarten through 12th grades while maintaining prepandemic educational standards.

This study describes coronavirus disease 2019 (COVID-19) case rates and deaths among federal and state prisoners and compares them with corresponding rates for the US population.

This Viewpoint discusses how COVID-19–related policy decisions lead to trade-offs between medical, economic, social, and psychological outcomes, and emphasizes the need to account for deaths associated with unemployment and depression when estimating excess mortality.

This Viewpoint discusses the mechanisms of the 5 leading COVID-19 vaccine candidates—2 messenger RNA vaccines, 1 recombinant VSV vector product, and 2 replication-defective adenovirus vector approaches—and emphasizes the need to demonstrate safety as well as efficacy to facilitate broad uptake by the public.

This Viewpoint lists 4 safeguards policy makers should consider before release of a COVID-19 vaccine, including ensuring effectiveness through clinical trials, providing evidence of safety, requiring informed consent before vaccination, and establishing comprehensive adverse effects monitoring systems.

This JAMA Clinical Insights article reviews the epidemiology, diagnosis, treatment, and prevention of hepatitis A infection given an upward trend in the incidence of the disease since 2016 in the US.

This Viewpoint summarizes evidence about the effects of intermittent fasting on chronic disease markers and considers potential concerns about fasting as a strategy for weight management and glycemic control in people with type 2 diabetes.

This JAMA Guide to Statistics and Methods explains the use of regression discontinuity analysis on observational data—the difference in effect estimate between regression analyses using an exposure variable above and beneath a threshold of interest—to distinguish changes attributable to an intervention from background ecological or secular changes.

This study uses data from the National Center for Health Statistics to estimate the excess deaths (ie, the difference between observed and expected deaths) in the US and the District of Columbia in the early weeks of the COVID-19 pandemic.