Herd immunity unlikely in L A County dailytrojan.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from dailytrojan.com Daily Mail and Mail on Sunday newspapers.
The study, which was released in JAMA Network Open, estimates that about 72% of people in L.A. County had either been vaccinated or had antibodies from a prior COVID-19 infection last April, before the Delta and Omicron variants caused significant surges in COVID-19 cases.
A USC study found high rates of COVID-19 vaccination and prior infection before the delta and Omicron variant surges, casting doubt that the pandemic will end through herd immunity once enough people have been vaccinated or experienced a prior infection.
The study, which was released in JAMA Network Open, estimates that about 72% of people in L.A. County had either been vaccinated or had antibodies from a prior COVID-19 infection last April, before the Delta and Omicron variants caused significant surges in COVID-19 cases.