More than 7 in 10 Los Angeles County adults were vaccinated or had COVID antibodies before delta and omicron surges
USC study suggests herd immunity is unlikely; path forward will rely on access to COVID treatments, vaccination and supporting hospital capacity CONTACT: Leigh Hopper at lhopper@usc.edu or 310-308-0405 Early in the COVID-19 pandemic, people hoped that the pandemic would end through ”herd immunity,” a scenario in which most people have antibodies from vaccination or prior infection and the […]