Unvaccinated individuals made up roughly 80 percent of ICU admissions and ventilator cases, each. Approximately 75 percent of the deaths were among unvaccinated patients, as well.
A study using SARS-CoV-2 antibody and T-cell tests shows that 41% of 29 patients who developed a postviral syndrome (PVS) showed evidence of a previous COVID-19 infection, suggesting that millions of Americans with long COVID symptoms were exposed to the virus early in the pandemic but couldn't access testing.
