We investigated a university-affiliated cohort of SARS-CoV-2 Omicron BA.2 infections in Arizona, USA. Of 44 cases, 43 were among students; 26 persons were symptomatic, 8 sought medical care, but none were hospitalized. Most (55%) persons had completed a primary vaccine series; 8 received booster vaccines. BA.2 infection was mild in this young cohort.
Keywords: Arizona; BA.2 subvariant; COVID-19; Omicron; SARS; SARS-CoV-2; United States; coronavirus; coronavirus disease; disease outbreaks; epidemiology; investigation; respiratory infections; severe acute respiratory syndrome coronavirus 2; viruses; zoonoses.