Karen Kaplan
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Karen Kaplan covered science and medical research for the Los Angeles Times. She was a member of the science team from 2005-25, including 13 years as an editor. Her first decade at The Times was spent covering technology in the Business section as both a reporter and editor. She grew up in San Diego and is a graduate of MIT and Columbia University.
Latest From This Author
Poultry producers, disease experts and government officials are now questioning the practice of widespread culling in response to H5N1 bird flu outbreaks.
Sen. Bill Cassidy’s intent to serve as a bulwark against Robert F. Kennedy Jr.’s vaccine skepticism may be sincere. But if Kennedy becomes the nation’s top health official, Cassidy will have limited power.
A key Senate committee supports Robert F. Kennedy Jr., President Trump’s pick to head the Department of Health and Human Services. The full Senate will vote on his nomination.
Health researchers began sharing warnings on social media several days ago, urging members of the community to make copies of federal data before the information was removed from the CDC website.
Global warming is worsening droughts, making sea levels rise, and fueling deadly storms. Now scientists have a new problem to add to that list: Climate change is helping rat populations thrive in U.S. cities.
Robert F. Kennedy Jr. faced aggressive questions about his skepticism of vaccines and other issues during the first of two scheduled Senate confirmation hearings.
In his first day as the 47th U.S. president, Donald Trump took action to reverse many of the Biden administration’s efforts to move the country toward a green-energy economy.
Robert F. Kennedy Jr. has big plans for the FDA if he’s confirmed as Secretary of Health and Human Services. FDA Commissioner Robert Califf explains why certain changes may not be that easy — or desirable.
The FDA banned the use of red dye No. 3 in foods and medicines sold in the U.S. because it has been shown to cause cancer in rats. The action highlights the limits of a federal law known as the Delaney clause.
Weather organizations from around the world agree that the planet’s average global surface temperature in 2024 could well have passed a crucial threshold meant to limit the worst effects of climate change.