COVID-19 infected and killed more people in poor, ethnically diverse New York City boroughs than in affluent, predominantly white ones, according to a research letter published yesterday in JAMA.Also, a prospective case series in the New England Journal of Medicine (NEJM) of 86 COVID-19 patients with immune-mediated inflammatory disease such as rheumatoid arthritis found that those taking anticytokine biologics or immunomodulatory therapies did not have worse outcomes than their peers.Factors other than density tied to disparitiesIn the JAMA study, researchers using community, hospital, and public health data on the New York City's five boroughs found that coronavirus-related hospitalizations and deaths were highest in the Bronx, which has