Lisa Aliferis

The measles outbreak that started at Disneyland and one other California theme park is expanding, with 59 confirmed cases in patients ranging in age from 7 months to 70 years. The California Department of Public Health has linked 42 of these cases to people who visited Disneyland or Disney's California ...

A trip to Disneyland is on many families' bucket lists, but that dream probably didn't including catching the measles.

Nine people who visited Disneyland or Disneyland California Adventure Park during December have confirmed measles cases, state health officials said Wednesday. Seven of the patients live in California and two live ...

Years of efforts to reduce the racial disparities in health care have so far failed to eliminate them. But progress is being made in the western United States, due largely to efforts by managed care plans to identify patients who were missing out on management of chronic diseases like diabetes ...

Prices for common medical tests like mammograms and MRIs are notoriously opaque. Negotiated rates between insurance companies and doctors or hospitals are sealed tight by contract. We know there's price variation, but comparing what one insurance company pays versus another is virtually impossible.

That's why we here at KQED in ...

These days, sugar is pretty much everywhere in the American diet. A new initiative from the University of California, San Francisco spells out the health dangers of this glut of sugar in clear terms.

For the project, called SugarScience, a team of researchers distilled 8,000 studies and research papers ...

Voters in Berkeley, Calif., have passed the nation's first soda tax with a resounding 75 percent of the vote. The measure aimed to reduce the effects of sugar consumption on health, especially in increased rates of obesity and diabetes.

More than 30 cities and states across the country have attempted ...

While the expansion of Medicaid under the Affordable Care Act may lead to a dramatic rise in emergency room use and hospitalizations for previously uninsured people, that increase seems to be largely temporary and should not lead to a dramatic impact on state budgets, according to an analysis ...

In an effort to combat stigma that has arisen around a treatment that prevents HIV, a San Francisco elected official announced publicly Wednesday that he is taking the medicine.

City Supervisor Scott Wiener said he is taking Truvada, a drug that dramatically reduces the risk of HIV infection. He appears ...

An analysis of the people who signed up for health insurance on California's exchange found that they are likely to drop the coverage for a pretty good reason: They found insurance elsewhere.

Researchers at the University of California, Berkeley, Labor Center estimate that about 20 percent of Covered ...

While Latino enrollment has lagged in California's insurance marketplace, Asian-Americans and legal Asian immigrants have signed up on Covered California in numbers outstripping their representation in the pool of eligible people.

According to the latest data from the exchange, the overwhelming majority of people of Asian descent are enrolling are ...

Some Californians whose policies have been canceled are finding relief in a surprising place: from insurance companies that aren't offering plans on the new Covered California marketplace.

Earlier this year, Aetna announced it would bow out of the state's individual market, effective Dec. 31. Cigna is staying, but isn't offering ...