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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: Secretary of Health and Human Services Robert F. Kennedy Jr. speaks during a news conference at the Department of Health and Human Services, April 16, 2025, in Washington, D.C.
Alex Wong/Getty Images

RFK Jr., CDC panel have been casting doubt on the hepatitis B vaccine. Here's why it's safe

PHOTO:Robert F. Kennedy Jr., speaks before Republican presidential nominee former President Donald Trump at a campaign event, Nov. 1, 2024, in Milwaukee.
Morry Gash/AP, FILE

RFK Jr. wants everyone to use wearables. What are the benefits, risks?

PHOTO: A sign is seen outside a clinic with the South Plains Public Health District, on Feb. 23, 2025, in Brownfield, Texas.
Julio Cortez/AP, FILE

Wyoming confirms 1st case of measles in 15 years as infections near 30-year high in US

PHOTO: The USAID logo is seen on a machine that processes recycled plastic into construction blocks at the Pasig Eco Hub, a project impacted by the Trump administration's freeze on foreign aid, March 10, 2025 in Pasig, Metro Manila, Philippines.
Ezra Acayan/Getty Images

USAID programs now being run by State Department as agency ends operations

PHOTO: Sean "Diddy" Combs and Cassie Ventura arrive for the 2018 Met Gala on May 7, 2018,
Angela Weiss/AFP via Getty Images, FILES

Why domestic violence survivors may not be able to 'just leave' abusive relationships

PHOTO: President Donald Trump speaks during a meeting with Democratic Republic of the Congo's Foreign Minister Therese Kayikwamba Wagner and Rwanda's Foreign Minister Olivier Nduhungirehe in the Oval Office at the White House in Washington, June 27, 2025.
Manuel Balce Ceneta/AP

How Trump's megabill could affect Medicaid and who could lose coverage

PHOTO: A sign marks the entrance to the federal Centers for Disease Control and Prevention (CDC) in Atlanta, on Oct. 8, 2013.
David Goldman/AP

CDC vaccine advisory committee recommends against flu vaccines containing thimerosal

PHOTO: The campus of Centers for Disease Control and Prevention is seen as a meeting of the Advisory Committee in Immunization Practices takes place, June 25, 2025, in Atlanta.
Mike Stewart/AP

CDC vaccine advisory panel to study child immunization schedule, recommends RSV shot for babies

PHOTO: Health and Human Services (HHS) Secretary Robert F. Kennedy Jr. testifies before the House Energy and Commerce Committee Health Subcommittee in the Rayburn House Office Building on June 24, 2025 in Washington, DC.
Kayla Bartkowski/Getty Images

Experts warn RFK Jr. is unraveling the system that kept vaccines safe

PHOTO: A sign marks the entrance to the federal Centers for Disease Control and Prevention (CDC) in Atlanta, on Oct. 8, 2013.
David Goldman/AP

What to expect from the upcoming CDC vaccine advisory committee meeting with RFK Jr.'s new members

PHOTO: A 3-D rendering shows the Covid-19 virus omicron variant strain.
STOCK IMAGE/Getty Images

What to know about COVID variant NB.1.8.1 causing 'razor blade throat'

PHOTO: A view shows a sign outside of the Emory University Hospital in Atlanta, May 22, 2025.
Megan Varner/Reuters

A pregnant brain-dead woman in Georgia was kept on life support. Experts say it raises ethical, legal questions

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