Early Omicron infection is associated with increased reinfection risk in older adults

A CITF-funded study, published in eClinicalMedicine found that residents of long-term care and retirement homes who had a SARS-CoV-2 infection early in the Omicron wave were more susceptible to get infected with a later Omicron variant than those who had never been infected or who had been infected with pre-Omicron variants.