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Orange County has hit what both public health officials and experts describe as a significant milestone: 70% of residents 18 and older had received at least one dose of the COVID-19 vaccine as of last week.
The county has been working to get to some level of so-called herd immunity by the beginning of July. That’s gaining more urgency as the new, highly infectious Delta variant is spreading. Delta is now the dominant variant in California, and is blamed for a rise in new cases in L.A. County.
Orange County has nearly 700,000 minors countywide — 65% of whom are under 12 and, consequently, have not been approved to receive the Pfizer-BioNTech vaccine. So does the level of vaccination approach actual herd immunity?