Among the first 43 confirmed (Omicron) cases in the United States between December 1st and 7th, over half were between the ages of 18 and 39 and about one third reported international travel before they were diagnosed.
Nearly 80 percent — or 34 individuals — were fully vaccinated. And about a third of them — or 14 of those 34 individuals — received an additional booster dose, though some who had a booster had just recently received it.
Additionally, 16 percent of the cases reported had previously been infected with SARS-CoV-2.
Among all cases, there was only one hospitalization and no deaths have been reported to date.
In reported cases thus far, most people experienced only mild symptoms, which is what we would expect from a group of fully vaccinated individuals.