LOS ANGELES — The arrival of the first COVID-19 vaccines in December 2020 marked the start of a new, safer phase of the pandemic.
For all that we know of life in the vaccine era — the inequities, the breakthrough infections, the partisan battles over mandates — it’s been hard to know what life would have been like without the shots.
A new project from researchers at the University of California, San Francisco in collaboration with the California Department of Public Health draws the clearest picture to date on what the state might have looked like had the vaccines never materialized.
