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Coronavirus Updates

There may be many more coronavirus infections in Los Angeles than previously reported, and a lower fatality rate among them, according to an ongoing study jointly conducted by the University of Southern California and the Los Angeles County Department of Public Health.

Preliminary results of the study, according to a press release published Monday, revealed an estimate that was 28 to 55 times higher than the 7,994 confirmed cases of coronavirus in Los Angeles County as of early April. The study found that the real number of cases is somewhere between 221,000 to 442,000.

The study utilized antibody tests, which detect past infections of the virus, on a representative sample of adults across the county. The research is ongoing, and more rounds of testing will be conducted.

Because more infections were discovered than previously estimated, it is likely that the mortality rate is also lower. According to the press release, the current number of confirmed COVID-related deaths in the county is around 600.

"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, in a press release about the study.

"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, in the press release.

Read the full press release.

In our latest HealthDay Now interview, Mabel Jong spoke to Dr. G. Caleb Alexander, a professor at Johns Hopkins who served on the FDA advisory committee that nearly unanimously advised against approving Biogen's new Alzheimer's drug. Dr. Alexander shared his thoughts on the drug's highly uncertain efficacy and discussed whether the FDA's reputation has been permanently damaged by the controversial approval of the drug.

Watch the in-depth discussion above, and see our past HealthDay Nows and other videos on our YouTube channel.

HD Live! Videos

Two world-renowned medical groups — the European Hematology Association (EHA) and the International Conference on Malignant Lymphoma (ICML) — conducted virtual meetings this month to share advances in the care of blood-based cancers.

In our latest HealthDay Now, Dr. Joshua Richter, assistant professor of medicine at the Tisch Cancer Institute, gave insights on the EHA meeting. Then, Dr. Anastasios Stathis, an oncologist and a member of this year's ICML organizing committee, joined us to discuss ICML.

Watch the in-depth discussion above, and see our past HealthDay Nows and other videos on our YouTube channel.


In our latest HealthDay Now, Mabel Jong spoke with Dr. Lori Pierce, president of the American Society of Clinical Oncology and a cancer radiation specialist at the University of Michigan.

Dr. Pierce shared important takeaways from the recently concluded 2021 ASCO annual meeting and discussed why equity was the chosen theme this year.

Watch the in-depth discussion above, and see our past HealthDay Nows and other videos on our YouTube channel.

In our latest HealthDay Now, Dr. Hina Talib, a pediatrician and adolescent health specialist at the Children's Hospital at Montefiore, debunks myths and common concerns parents may have about giving their children Pfizer's COVID-19 vaccine, which was recently approved for use in children and teens ages 12 and up.

HealthDay Now's Mabel Jong also speaks with Alan Santee, a high school freshman from Massachusetts, about why he didn't hesitate to get vaccinated, and Ethan Lindenberger, a 20-year-old vaccine advocate from Ohio, about his experience having a mom who is anti-vaccine and how kids and parents can approach these conversations.

Watch the in-depth discussion above, and see our past HealthDay Nows and other videos on our YouTube channel.

Watch our latest HealthDay Now to hear about the state of mental health and why many people fear returning to their social and work lives.

HealthDay's Mabel Jong spoke to Dr. Vivian Pender, president of the American Psychiatric Association, and Sherry Amatenstein, a social worker and therapist who has been dealing with these anxieties herself.

Watch the in-depth discussion above, and see our past HealthDay Nows and other videos on our YouTube channel.

Watch our latest HealthDay Now for a preview of the American College of Physicians Annual Meeting 2021, covering topics like the alarming shortage of primary care physicians, bringing basic health delivery needs to rural residents, and why the ACP will focus on privacy concerns at its conference.

HealthDay Now's Mabel Jong speaks with Dr. Jacqueline Fincher, president of the American College of Physicians and an internist in a rural community in Georgia.

Watch the in-depth discussion above, and see our past HealthDay Nows and other videos on our YouTube channel.

Watch our latest HealthDay Now as we cover the latest on the Johnson & Johnson COVID-19 vaccine investigation. An independent advisory panel to the CDC is waiting on additional information before making recommendations on the use of the Johnson & Johnson COVID-19 vaccine after reports about rare blood clots.

Mabel Jong from our liveblog team speaks with Lynn Bahta, a member of the CDC's Advisory Committee on Immunization Practices (ACIP) and a clinical expert for vaccines at the Minnesota Department of Health.

Watch the in-depth discussion above, and see our past HealthDay Nows and other videos on our YouTube channel.

Watch our latest HealthDay Now as we recap the highlights of the American Association for Cancer Research (AACR) Annual Meeting 2021.

Mabel Jong from our liveblog team speaks with Dr. Antoni Ribas, former president of the American Association for Cancer Research and professor of medicine at UCLA, and Anna Plym, PhD, a postdoctoral research fellow at Brigham and Women's Hospital.

Watch the in-depth discussion above, and see our past HealthDay Nows and other videos on our YouTube channel.

Watch our latest HealthDay Now as we dive into the latest details on multisystem inflammatory syndrome in children (MIS-C).

Mabel Jong from our liveblog team speaks with Dr. Mary Beth Son, Program Director of Boston Children's Hospital's Rheumatology Program, and Brian Padla, father of James Padla, who has MIS-C.

Watch the in-depth discussion above, and see our past HealthDay Nows and other videos on our YouTube channel.