Science
What to Know About the Hepatitis A Outbreak in L.A. County
Public health officials in Los Angeles County have declared an outbreak of hepatitis A, a highly contagious liver infection driven by a virus that can, in rare cases, cause severe illness.
The condition, which is typically identified in fewer than 50 people in L.A. County each year, infected at least 138 people in 2024 and cases have remained unusually high so far in 2025. Officials say that levels of the virus in local wastewater suggest these figures are an undercount.
Here’s what to know.
How is hepatitis A transmitted?
The hepatitis A virus is spread through the so-called oral-fecal route, which means it is ingested through food or drinks that have been contaminated by microscopic bits of stool from an infected person. It can also spread through close contact with someone who is carrying the virus, even if they don’t show any symptoms.
Unhoused people are often at greater risk of contracting hepatitis A because they have limited access to proper toilets and hand-washing facilities. The virus is also more common among travelers to places with poor sanitation, men who have sex with men and people who use drugs.
But officials say many of the recent cases have occurred in people without those risk factors. They do not yet know why, but Dr. Timothy Brewer, an infectious disease physician and epidemiologist at U.C.L.A., said it had led him to worry about two things: food contamination, and community circulation.
“If you’re practicing good hygiene in a community that has access to potable water, you really should not be seeing a lot of this,” he said. “Something is going on — but exactly what that something is, we don’t yet know.”
What are the symptoms of a hepatitis A infection?
The first signs of the infection can look a lot like a classic stomach bug: fever, fatigue, nausea and a loss of appetite, followed by vomiting and diarrhea. Over time, people who become infected can also experience yellowed skin and eyes, dark urine and pale stools.
One of the challenges to halting a hepatitis A outbreak is that contact tracing can be nearly impossible. The infection can incubate for up to seven weeks before symptoms appear, and a person carrying the virus can spread it for up to two weeks before they feel ill.
In addition, a significant proportion of people who become infected don’t experience major symptoms, said Dr. Edward Jones-Lopez, an infectious disease specialist with Keck Medicine of the University of Southern California, so they do not visit their doctor, who in turn does not run a blood test and report the case.
Severe symptoms are most often seen in older adults, people with chronic liver conditions, and those with weakened immune systems or H.I.V. On rare occasions, a hepatitis A infection can be fatal. In this outbreak, at least seven people have died. That may seem like an unusually high fatality rate, but officials believe far more people have been infected than the official numbers show. Most have probably been asymptomatic, or shown symptoms mild enough to have been misidentified.
How is hepatitis A treated?
There is no specific antiviral medication for hepatitis A. The infection usually resolves on its own within a few weeks, and most people do not face lasting liver damage. But for some, hospitalization can be necessary.
In rare cases, the infection can devolve into an acute liver failure called fulminant hepatitis, which may require a transplant, said Dr. Jones-Lopez. “It can progress very, very quickly — that’s a very serious disease.”
If you think you might be infected, be sure to visit your doctor, drink lots of fluids, and get adequate rest.
How can I avoid it?
The best way to prevent a hepatitis A infection is through vaccination. The regimen — two doses of vaccine, at least six months apart — provides protection for life. It has been routinely given to children for the last two decades, but many adults 25 and older have not gotten the shots unless they were in a high-risk group.
The fact that the outbreak is occurring outside of traditional populations “underscores the need to reassess how — and where — we target prevention efforts,” said Dr. Anne Rimoin, an epidemiology professor at U.C.L.A., since “an infection anywhere is potentially an infection everywhere.”
If you are unvaccinated but know you have been exposed to a person carrying the virus, a prompt vaccination can prevent your becoming infected. Experts say that some people with weakened immune systems who are exposed could also benefit from receiving immune globulin as well. And good hygiene is a wise protective measure for everyone; wash your hands with soap and water, especially after using the bathroom, and before preparing food.
Science
Warning of cuts to medical services, L.A. health officials ask state for emergency funds
The Los Angeles County Department of Health Services has joined a chorus of California hospitals and health systems lobbying the state for a $500-million emergency payment to public hospitals bracing for massive financial losses.
The California Assn. of Public Hospitals and Health Systems is requesting a one-time general fund payment in the 2026-27 budget to help cover inpatient care for fee-for-service Medi-Cal patients at the state’s 17 public hospitals.
While the exact percentage of the $500 million allocated to each hospital will depend on inpatient claims, the county expects that roughly 25%, or $125 million, will end up at Los Angeles County hospitals, said Dr. Christina Ghaly, director of LA Health Services.
“That’s the money that is really necessary to serve as a stopgap and continue that lifeline that the public hospitals desperately need, particularly with the state’s proposed shift of undocumented individuals from managed care into fee-for-service,” Ghaly said.
Ghaly praised county voters for passing Measure ER, which will provide an estimated $220 million annually for the next five years to the county health system through a new half-cent sales tax, Ghaly said.
But it’s not enough to stanch what the county estimates will be a $700-million annual loss by the 2028-29 fiscal year.
LA Health Services is the largest public health system in the state and second-largest in the nation. It serves as a safety net for the county’s 10 million residents, providing healthcare regardless of an individual’s ability to pay.
More than 80% of the system’s patients rely on Medi-Cal, Los Angeles General Medical Center Chief Executive Jorge Orozco told a state Senate committee in March.
The One Big Beautiful Bill Act, which President Trump signed into law last summer, alters Medicaid eligibility requirements and includes about $1 trillion in federal Medicaid reductions over 10 years, according to the Legislative Analyst’s Office. As a result, California is expected to lose tens of billions in total funding for Medi-Cal, the state’s Medicaid program.
About 660,000 people in Los Angeles County are expected to lose Medi-Cal coverage, “but they will not stop needing healthcare,” Orozco said in March. “They will still come to our emergency rooms for everything from routine illness to life threatening conditions. And safety net hospital systems like ours will be forced to absorb those costs.”
County health officials have enacted hiring freezes, consolidated services, reduced overtime and taken other cost-cutting measures in anticipation of the losses, resulting in about $230 million in savings.
“But we need to be clear: we cannot cut our way out of a funding loss of this magnitude,” the department said in a statement released this week. “Without help from the State, we will be forced to consider options no one wants, reduced patient services, staff layoffs, and potential facility closures.”
The county has not yet identified specific services for closure, Ghaly said.
“Our focus is entirely on preventing the harm that would come before we have to make those tough choices,” she added.
A memo on the department’s fiscal outlook prepared for the Board of Supervisors sounded the alarm in April.
“For the patients we serve, losing Medi-Cal doesn’t mean they stop getting sick — it means losing access to care. Health Services will still be here, but with over 600,000 more uninsured patients in LA County alone, the strain will be felt across our health system and across every emergency room in Los Angeles County,” the memo read.
“Without substantial new revenue sources, Health Services will have no alternative but to consider planning for service curtailments — including possible facility closures and staff layoffs — beginning in early 2027.”
Science
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June 10, 2026
Science
UC Davis favored less qualified Black, Latino med school applicants, Justice Department claims
The U.S. Justice Department has accused the UC Davis School of Medicine of choosing race “over merit, skill, and competence” in its admissions process, favoring Black and Latino students even when they weren’t as qualified as white and Asian applicants.
The department said its findings, announced Wednesday afternoon, were based on a six-month investigation by its Civil Rights Division. The Justice Department said it found that the Northern California university violated the Supreme Court’s 2023 ruling against race-based determinations in admissions. The findings have been contested by the school.
“Davis Med’s actions reflect both unabashed contempt for the rule of law and plain disregard for the potential public health consequences of putting race over merit, skill, and competence,” Assistant Atty. Gen. Harmeet K. Dhillon of the Justice Department’s Civil Rights Division said in a statement.
“The Department will not allow schools to violate federal law without consequence.”
A spokesperson said the university was “disappointed” with the report and its findings.
“UC Davis School of Medicine strongly disagrees with any characterization of its admissions practices as discriminatory or inconsistent with applicable law,” a school statement read. “The report’s findings do not accurately reflect the school’s rigorous, individualized, and merit-based admissions process and our firm commitment to complying with applicable federal and state antidiscrimination laws.”
The department outlined its case in a 12-page letter to an attorney representing UC Davis, claiming the university violated Title VI of the Civil Rights Act, as interpreted by the Supreme Court’s 2023 Students for Fair Admissions vs. Harvard.
Title VI prohibits institutions receiving federal funding from discriminating based on race, while the 2023 decision banned affirmative action in higher-education admissions.
The Justice Department said its investigation found the medical school “adopted admissions practices with the express purpose of circumventing” the 2023 ruling.
That method was the “Davis Scale,” the department said. The letter called the scale a “continuous measure of socioeconomic disadvantage” that includes parental income and education, growing up in a medically underserved area and other socioeconomic variables.
The Justice Department included UC Davis literature that said the scale had allowed the school to triple the enrollment of Black and Latino students.
In 2024, Davis’ medical school became the third most racially diverse medical school in the country, the Justice Department claimed.
Conversely, the department said its review of medical school admissions data from 2023 to 2025 found that 93% of white and certain Asian applicants had MCAT scores at or above those of the average Black student.
It also showed that Black and Hispanic applicants were admitted at rates up to six times higher than whites and Asians, despite consistently having, on average, lower academic qualifications, according to the department.
The Justice Department said it is attempting to enter into a voluntary agreement with UC Davis to bring the medical school into compliance. The department would eventually sue the medical school if such a resolution is not found.
UC Davis did not indicate whether it would comply with the Justice Department.
“UC Davis is fully committed to meeting the critical healthcare needs of California, particularly those in underserved and under-resourced areas,” the school said in a statement.
The finding mirrors similar investigations into medical schools at UCLA and UC San Diego.
The Justice Department said last month that UCLA’s David Geffen School of Medicine intentionally used race for the last three years to discriminate against white and Asian applicants during admissions.
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