Congress has cut federal funding for public media — a $3.4 million loss for LAist. We count on readers like you to protect our nonprofit newsroom. Become a monthly member and sustain local journalism.
Study: Roughly 4% Of LA County Adults Have Had Coronavirus

Our news is free on LAist. To make sure you get our coverage: Sign up for our daily coronavirus newsletter. To support our non-profit public service journalism: Donate Now.
A study that tested 863 adults for antibodies to COVID-19 suggests it's infected more people in L.A. County than the official numbers show.
With the preliminary results released today, researchers estimate that somewhere between 220,000 and 440,000 Angelenos have already been infected. That's a lot more than the 13,816 cases confirmed so far.
With the substantially higher estimate of cases, that suggests the mortality rate for the county is much lower than the current 4.4%, said L.A. County Public Health Director Dr. Barbara Ferrer. She pegged it at closer to .1% or .2%.
"I think if there is a part of this that's hopeful for us, it is that the mortality rate now has dropped a lot," she said.
DON'T MISS ANY L.A. CORONAVIRUS NEWS
Get our daily newsletters for the latest on COVID-19 and other top local headlines.
Terms of Use and Privacy Policy
The study suggests the vast majority of people in the county have probably not been infected.
"What the findings show is that only 4% of our population has been infected," said USC's Dr. Neeraj Sood, the study's lead investigator. "Which means we are very early in the epidemic and many more people in L.A. County could potentially be infected."
Noting that the sample size for the study was relatively small, Ferrer provided some early estimates of who was most likely to have been infected. Men, for instance, had a higher prevalence of infection than women (6% for men vs. 2% for women). As for demographics, she said the breakdown for those who tested positive was:
- 7% of African Americans
- 6% of white residents
- 4.2% of Asians
- 2.5% of Latino/Latina residents

L.A. County is currently averaging about 50 COVID-19 deaths a day, according to the Department of Public Health's Chief Science Officer, Dr. Paul Simon. He noted that COVID-19 is currently killing more people in the county than any other cause, including coronary heart disease.
And while an estimated mortality rate of .1% or .2% would get COVID-19 closer to the season flu's rate, researchers cautioned that's not the whole picture.
"For the flu, maybe deaths are spread over six to eight months," said lead investigator Dr. Neeraj Sood, professor & senior fellow at USC's Price School for Public Policy. "But for COVID, [they] might be more concentrated over a span of two months or one month, which could overrun the health care system -- and that in turn could change the fatality rate."
Researchers hope to replicate the antibody study in the coming weeks.
As Editor-in-Chief of our newsroom, I’m extremely proud of the work our top-notch journalists are doing here at LAist. We’re doing more hard-hitting watchdog journalism than ever before — powerful reporting on the economy, elections, climate and the homelessness crisis that is making a difference in your lives. At the same time, it’s never been more difficult to maintain a paywall-free, independent news source that informs, inspires, and engages everyone.
Simply put, we cannot do this essential work without your help. Federal funding for public media has been clawed back by Congress and that means LAist has lost $3.4 million in federal funding over the next two years. So we’re asking for your help. LAist has been there for you and we’re asking you to be here for us.
We rely on donations from readers like you to stay independent, which keeps our nonprofit newsroom strong and accountable to you.
No matter where you stand on the political spectrum, press freedom is at the core of keeping our nation free and fair. And as the landscape of free press changes, LAist will remain a voice you know and trust, but the amount of reader support we receive will help determine how strong of a newsroom we are going forward to cover the important news from our community.
Please take action today to support your trusted source for local news with a donation that makes sense for your budget.
Thank you for your generous support and believing in independent news.

-
After rising for years, the number of residential installations in the city of Los Angeles began to drop in 2023. The city isn’t subject to recent changes in state incentives, but other factors may be contributing to the decline.
-
The L.A. City Council approved the venue change Wednesday, which organizers say will save $12 million in infrastructure costs.
-
Taxes on the sale of some newer apartment buildings would be lowered under a plan by Sacramento lawmakers to partially rein in city Measure ULA.
-
The union representing the restaurant's workers announced Tuesday that The Pantry will welcome back patrons after suddenly shutting down six months ago.
-
If approved, the more than 62-acre project would include 50 housing lots and a marina less than a mile from Jackie and Shadow's famous nest overlooking the lake.
-
The U.S. Supreme Court lifted limits on immigration sweeps in Southern California, overturning a lower court ruling that prohibited agents from stopping people based on their appearance.