The new bivalent boosters were developed to generate an immune response from the original COVID-19 virus, in addition to the BA.4 and BA.5 Omicron subvariants, according to the county.
COVID-19 activity remains high in San Diego County, the Health and Human Services Agency reported Friday, even as hospitalizations are on a slow decline.
The number of San Diego County patients hospitalized with COVID-19 has continued to fall, decreasing to 589 Sunday down from 628 on Saturday and 648 on Friday according to the latest state data.
The number of San Diego County residents hospitalized with the coronavirus increased from 332 to 355, while the number of those patients in intensive care declined from 94 to 92, according to the latest state figures.