News

Children who ate more ultraprocessed foods showed stronger activity in a part of the brain involved in reward, and that brain response was linked to greater gains in body fat over the following year, a new study found. The study — published October 2026 in JAMA Network Open — followed 46 children ages 7 to 10 ...

A large multisite study found that bivalent mRNA COVID-19 vaccination, flu vaccination, and same-day administration of both vaccines were not associated with an increased risk of first-ever ischemic stroke. “This study found no evidence of an increased risk of ischemic stroke following bivalent COVID-19 vaccination, influenza vaccination, or receiving both vaccines on the same day,” said ...

A first-in-human Phase 1 clinical trial at Kaiser Permanente Los Angeles Medical Center marks an important milestone for the Kaiser Permanente Southern California Department of Research & Evaluation and demonstrates what is possible when research, clinical care and operational teams work together as one. “This is the first time we’ve hosted a first-in-human Phase 1 clinical ...

It’s fall conference season, and investigators and physicians from Kaiser Permanente Southern California have been sharing leading-edge research with researchers, clinicians, and other health care professionals across the United States. Conferences where our researchers and physicians have presented so far this fall include the American Urogynecologic Society Annual Meeting, the American Heart Association’s Hypertension Scientific Sessions, ...

An RSV vaccine continued to protect adults aged 60 and older against RSV-related hospitalization and emergency department visits for at least 3 seasons after vaccination, according to a new study by Kaiser Permanente in Southern California. RSV, or respiratory syncytial virus, is a common respiratory virus that can cause serious illness, hospitalization, and even death ...

Casey Luc, PhD, MPH, an epidemiologist with expertise in HIV epidemiology in underserved communities, is the fifth Centers for Disease Control and Prevention Epidemic Intelligence Service officer to train with Kaiser Permanente Southern California’s Department of Research & Evaluation. Before joining Kaiser Permanente, he served as a health scientist contractor in the Syndemic Infectious Diseases ...

Kevin Yu, PhD, is a postdoctoral research fellow in the Department of Research & Evaluation at Kaiser Permanente Southern California. He earned his PhD in health informatics from Northwestern University, where his work focused on pharmacoepidemiology and health informatics. His research focuses on cardiovascular disease and dementia, with a particular interest in target trial emulation ...

Managing Type 2 diabetes can be challenging. Food choices matter, but healthy options aren’t always easy to afford or find. A Kaiser Permanente study found that adults with diabetes who were on Medicaid improved their blood sugar when they received healthy grocery deliveries at home.