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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: Cyclospora cayetanensis is a unicellular parasite that causes an intestinal infection called cyclosporiasis.
CDC

Cases of cyclosporiasis in Michigan surpass 5,000, health officials say

PHOTO: Smoke from wildfires in Canada shrouds the view north to midtown Manhattan, seen from the 86th floor observation deck of the Empire State Building before sunset, July 15, 2026, in New York City.
Gary Hershorn/ABC News

As smoke from Canadian wildfires blankets the US, can wearing a mask help?

PHOTO: Signs point the way to measles testing in the parking lot of the Seminole Hospital District across from Wigwam Stadium, Feb. 27, 2025, in Seminole, Texas.
Jan Sonnenmair/Getty Images

Measles cases in 2026 are set to surpass last year's total. Here's why

PHOTO: Erica Schwartz attends her nomination hearing to become Director Of the Centers for Disease Control and Prevention with the Senate Health, Education, Labor and Pensions Committee on Capitol Hill, July 15, 2026 in Washington.
Finn Gomez/Getty Images

Dr. Erica Schwartz faces questions about vaccines at CDC director confirmation hearing

PHOTO: Adi, 38, has been struggling to access health services for her daughter Camila, 10, who was injured a few months ago, due to the high cost and limited services.
Mauro Jose Medina Garcia/The International Rescue Committee

'Pretty dire': Aid workers reveal health needs in Venezuela amid recovery from earthquakes

PHOTO: A health worker stands at the Evangelical Medical Center, in Bunia, eastern Congo, July 3, 2026.
Dirole Lotsima Dieudonne/AP Photo

2nd American infected with Ebola in DRC evacuated to Germany, WHO chief says

PHOTO: Legionnaire's Disease bacterium is seen in this stock photo.
Bsip/uig/Getty Images/Universal Images

Legionnaires' disease cluster in New York City grows to 54 cases

PHOTO: Cyclospora cayetanensis is a unicellular parasite that causes an intestinal infection called cyclosporiasis.
CDC

Here's where cyclosporiasis is spreading as cases are confirmed in 32 states

PHOTO: Cyclospora cayetanensis is a unicellular parasite that causes an intestinal infection called cyclosporiasis.
CDC

Cyclosporiasis symptoms, treatment and how it's spread: Everything to know about the intestinal parasitic disease

PHOTO: Cyclospora cayetanensis is a unicellular parasite that causes an intestinal infection called cyclosporiasis.
CDC

Cyclosporiasis cases top 1,200 in Michigan, health officials say

PHOTO: Legionnaire's Disease bacterium is seen in this stock photo.
Bsip/uig/Getty Images/Universal Images

Nearly 2 dozen sickened in Legionnaires' disease cluster in New York City

PHOTO: Cyclospora cayetanensis is a unicellular parasite that causes an intestinal infection called cyclosporiasis.
CDC

Cases of parasitic infection growing in 2 states: Health officials

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