header image

[Sign Up Now] to Receive Our FREE Daily SCVTV-SCVNews Digest by E-Mail

Inside
Weather
Santa Clarita CA
Sunny
Sunny
69°F
 
Calendar
Today in
S.C.V. History
May 17
1993 - Dale Poe, 61, developer of Stevenson Ranch, killed in car crash [story]
Stevenson Ranch fountain


USC and the Los Angeles County Department of Public Health on Monday released preliminary results from a scientific study that suggest COVID-19 infections are far more widespread — and the fatality rate much lower — in L.A. County than previously thought.

The results are from the first round of an ongoing study by USC researchers and Public Health officials. They will be conducting antibody testing over time on a series of representative samples of adults to determine the scope and spread of the pandemic across the county.

Based on results of the first round of testing, the research team estimates that approximately 4.1% of the county’s adult population has antibody to the virus.

Adjusting this estimate for the statistical margin of error implies about 2.8% to 5.6% of the county’s adult population has antibodies to the virus — which translates to approximately 221,000 to 442,000 adults in the county who have had the infection.

That estimate is 28 to 55 times higher than the 7,994 confirmed cases of COVID-19 reported to the county by the time of the study in early April. The number of COVID-related deaths in the county has now surpassed 600.

COVID-19 Infections

“We haven’t known the true extent of COVID-19 infections in our community because we have only tested people with symptoms, and the availability of tests has been limited,” said lead investigator Neeraj Sood, a USC professor of public policy at USC Price School for Public Policy and senior fellow at USC Schaeffer Center for Health Policy and Economics. “The estimates also suggest that we might have to recalibrate disease prediction models and rethink public health strategies.”

The results have important implications for public health efforts to control the local epidemic.

“These results indicate that many persons may have been unknowingly infected and at risk of transmitting the virus to others,” said Dr. Barbara Ferrer, director of the L.A. County Department of Public Health. “These findings underscore the importance of expanded polymerase chain reaction (PCR) testing to diagnose those with infection so they can be isolated and quarantined, while also maintaining the broad social distancing interventions.”

covid-19 infections

The antibody test is helpful for identifying past infection, but a PCR test is required to diagnose current infection.

“Though the results indicate a lower risk of death among those with infection than was previously thought, the number of COVID-related deaths each day continues to mount, highlighting the need for continued vigorous prevention and control efforts,” said Dr. Paul Simon, chief science officer at L.A. County Department of Public Health and co-lead on the study.

The study’s results have not yet been peer-reviewed by other scientists. The researchers plan to test new groups of participants every few weeks in coming months to gauge the pandemic’s trajectory in the region.

covid-19 infections

About the study
With help from medical students from the Keck School of Medicine of USC, USC researchers and Public Health officials conducted drive-through antibody testing April 10th and 11th at six sites. Participants were recruited via a proprietary database that is representative of the county population. The database is maintained by LRW Group, a market research firm.

The researchers used a rapid antibody test for the study. The FDA allows such tests for public health surveillance to gain greater clarity on actual infection rates. The test’s accuracy was further assessed at a lab at Stanford University, using blood samples that were positive and negative for COVID-19.

covid-19 infections

In addition to Sood and Simon, other authors and institutions contributing to the study include Peggy Ebner of the Keck School; Daniel Eichner of the Sports Medicine Research & Testing Laboratory; Jeffrey Reynolds of LRW Group; Eran Bendavid and Jay Bhattacharya of Stanford University School of Medicine.

The study was supported with funding from USC Schwarzenegger Institute, USC Lusk Center, USC President’s Office, Jedel Foundation, LRW Group, Soap Box Sample, and several individual donors.

covid-19 infections

All photos: Kit Karzen.

Comment On This Story
COMMENT POLICY: We welcome comments from individuals and businesses. All comments are moderated. Comments are subject to rejection if they are vulgar, combative, or in poor taste.
REAL NAMES ONLY: All posters must use their real individual or business name. This applies equally to Twitter account holders who use a nickname.

0 Comments

You can be the first one to leave a comment.

Leave a Comment


SCV NewsBreak
LOCAL NEWS HEADLINES
Monday, May 17, 2021
Arson Suspect in Custody as Crews Battle LA Wildfire
Los Angeles police have arrested a man suspected of igniting a wildfire that has so far burned over 1,300 acres and spurred mandatory evacuations as fire crews battled the blaze in steep, brush-filled terrain in a canyon community west of the city.
Monday, May 17, 2021
CDC Funding to Support COVID-19 Testing at Schools
Santa Clarita Valley’s six school districts could receive a little over $7.5 million from Los Angeles County to provide comprehensive COVID-19 screening programs at SCV schools.
Friday, May 14, 2021
KAP7, CIF-SS Announce Extension of Five-Year Ball Partnership
The CIF Southern Section and KAP7 International, Inc. announced a five-year partnership extension for KAP7 to be the official boys and girls water polo ball for all championship events.
Keep Up With Our Facebook

Latest Additions to SCVNews.com
Los Angeles police have arrested a man suspected of igniting a wildfire that has so far burned over 1,300 acres and spurred mandatory evacuations as fire crews battled the blaze in steep, brush-filled terrain in a canyon community west of the city.
Arson Suspect in Custody as Crews Battle LA Wildfire
The city of Santa Clarita’s Film Office has reported 9 productions filming in the Santa Clarita Valley aka "Hollywood North" the week of Monday, May 17-23, 2021
Filming This Week in SCV: ‘Star Trek Picard,’ ‘Good Trouble,’ 7 More Productions
A new report published by the Los Angeles County Department of Arts and Culture and Claremont Graduate University’s Center for Business and Management of the Arts revealed disparities between earnings of L.A. County arts administrators that identify as Black, Indigenous, and People of Color and their White counterparts.
New Report Highlights Income Disparities in Entry-Level Arts Organization Staff in LA County
Santa Clarita Valley’s six school districts could receive a little over $7.5 million from Los Angeles County to provide comprehensive COVID-19 screening programs at SCV schools.
CDC Funding to Support COVID-19 Testing at Schools
1993 - Dale Poe, 61, developer of Stevenson Ranch, killed in car crash [story]
Stevenson Ranch fountain
1938 - Brand-new Lockheed transport plane crashes in Agua Dulce; all 9 perish including 2 infants [story]
plane crash
1969 - Board of Trustees selects "College of the Canyons" name [story]
COC
The city of Santa Clarita Planning Commission is scheduled to conduct a public hearing Tuesday to further deliberate on the Sand Canyon Resort development.
Sand Canyon Resort Development Returns to Planning Commission
The CIF Southern Section and KAP7 International, Inc. announced a five-year partnership extension for KAP7 to be the official boys and girls water polo ball for all championship events.
KAP7, CIF-SS Announce Extension of Five-Year Ball Partnership
Gov. Gavin Newsom unveiled a plan that would spend about $1.5 billion of the state’s $75.7 billion surplus in grants of up to $25,000 to support small businesses, according to state officials this week.
Chamber Urges SCV to Support Newsom’s Aid to Small Businesses
On Friday, Los Angeles County Public Health officials confirmed 17 new deaths and 583 new cases of COVID-19 countywide, with 27,842 total cases in the Santa Clarita Valley.
Friday COVID-19 Roundup: Studies Show Vaccine Appears to Be Effective Against Variants; 27,842 Total SCV Cases
Fourteen-year-old Andrew Jenofsky was the first in line to get his shot at Henry Mayo Newhall Hospital Thursday morning, as adolescents ages 12-15 were given the go-ahead to get Pfizer’s COVID-19 vaccine.
14-Year-Old First to Receive Pfizer Vaccine at Henry Mayo
Support for Israel was written across the signs and faces of approximately 100 demonstrators during a rally held on City Hall’s steps Thursday evening.
Approximately 100 SCV Residents Gather to Support Israel
The city of Santa Clarita received approximately 850 applications for its rental assistance program ahead of the program’s April 30 application deadline.
City Receives More Than 800 Rental Assistance Applications
Saddleback Butte State Park announced it is urgently searching for volunteers to become camp hosts beginning June 1.
Camp Hosts Needed at Saddleback Butte State Park, New Updates Announced for Mojave Area State Parks
Los Angeles County Public Health officials said it will review the Centers for Disease Control and Prevention's newly released guidance for fully vaccinated residents in order to make adjustments to the current County and state guidelines.
LA County to Review CDC’s Masking Guidelines for Fully Vaccinated People
The city of Santa Clarita released an updated schedule for the Concerts in the Park series set to take place in July and August.
City Releases Updated Schedule for Concerts in the Park
1874 - Outlaw Tiburcio Vasquez captured in Hollywood Hills [story]
Tiburcio Vasquez
The Centers for Disease Control and Prevention released guidance Thursday indicating that people who are fully vaccinated against COVID-19 can safely resume activities that were done prior to the pandemic.
Thursday COVID-19 Roundup: CDC Loosens Mask Restrictions for Fully Vaccinated People; SCV Cases Total 27,825
A total of 277 single-family homes changed owners during April in the Santa Clarita Valley as the as the tight inventory rose to its highest level in five months, though remained well below year-ago totals, the Southland Regional Association of Realtors reported Thursday.
SCV Median Home Price $795,000 Hits Record
After making numerous requests for correction for failure by the County Board of Supervisors to abide by various sections of the Brown Act, the Santa Clarita Organization for Planning and the Environment was left with no option than to file a formal legal complaint.
SCOPE Files Legal Complaint Over L.A. County’s Failure to Abide by Brown Act
The case against a prominent Santa Clarita Valley Realtor who had been accused of a sexual assault stemming from a Las Vegas real estate conference last summer was dismissed, a court clerk confirmed Thursday.
Las Vegas Sexual Assault Case Against SCV Realtor Dismissed, L.A. County Case “Still Active”
Tommy's Boats - a national boat dealership brand with locations in Florida, Arizona, Nevada, Colorado, and Michigan - announced a new location opening soon in Castaic.
May 19, May 20: Tommy’s Boats Grill & Chill Hiring Event
Foothill League coaches announced their choice for Player of the Year and their All-League teams recently.
Saugus High QB Named Foothill League Player of the Year
%d bloggers like this: