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Health & Science Reporter

Mary Kekatos

Mary Kekatos is on ABC News. Get Mart Kekatos's latest news stories and articles, connect with millions of users and join the conversation at ABC News.

Mary's Latest Work

PHOTO: The healthcare.gov website on a laptop arranged in Norfolk, Virginia, Nov. 1, 2025.
Stefani Reynolds/Bloomberg via Getty Images

Trump administration begins mailing out $500 ACA refund checks. Here's what to know

PHOTO: A women in a hospital gown talks to a doctor in this undated photo.
Getty Images

What to know about your breast cancer risk as Breast Cancer Awareness Month kicks off

PHOTO: Close-up of a mosquito biting human skin.
Joao Paulo Burini/Getty Images

As dengue continues to rise in Florida, some are worried about underreporting of cases

PHOTO: Governor Gavin Newsom is pictured during a recorded interview with AFP in the Manhattan borough of New York City on September 23, 2026.
Charly Triballeau/AFP via Getty Images

What to know about California's new ultra-processed foods label law

PHOTO: The measles virus.
BSIP/Universal Images Group via Getty Images

Pennsylvania surpasses 900 measles cases with 13 new confirmed infections: Officials

PHOTO: In this Oct. 24, 2025, file photo, a vial of the Measles, Mumps, and Rubella (MMR) vaccination for children is displayed during an immunization event in Los Angeles.
Patrick T. Fallon/AFP via Getty Images, FILE

Pennsylvania measles outbreak grows to 890 cases with 55 new infections: Officials

PHOTO: Brigham and Women's Hospital nurses strike, July 13, 2026, outside the hospital in Boston, Massachusetts.
Pat Greenhouse/Boston Globe via Getty Images

4,000 Brigham and Women's nurses 'overwhelmingly' vote to authorize open-ended strike

PHOTO: Dr. Heidi Overton, nominee to be commissioner of the Food and Drug Administration, arrives for her Senate Health, Education, Labor and Pensions Committee confirmation hearing in Dirksen building on Sept. 24, 2026.
Tom Williams/CQ-Roll Call, Inc via Getty Images

Dr. Heidi Overton appears before Senate committee for confirmation hearing as next FDA commissioner

PHOTO: A general view of Busch Stadium, June 25, 2026 in St Louis, Missouri.
Joe Puetz/Getty Images

Possible measles exposure at Busch Stadium, local St. Louis-area businesses, officials warn

PHOTO: Culex quinquefasciatus mosquito.
Gerard Lacz/Adobe Stock

LA County sees highest number of West Nile virus cases in nearly a decade

PHOTO: Close-up of a mosquito biting human skin.
Joao Paulo Burini/Getty Images

What to know about dengue fever as Florida reports 1st death and cases rise

PHOTO: Travelers wait in a line that stretches to the parking garage at the Philadelphia International Airport on March 28, 2026 in Philadelphia, Pennsylvania.
Matthew Hatcher/Getty Images

2nd possible measles exposure reported in Philadelphia at airport

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