CNN Profiles - Elizabeth Cohen - Senior Medical Correspondent - CNN

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A count kept of polio vaccinations administered at the Rockland County health department, in Pomona, N.Y. on July 22, 2022. Health officials here offered pop-up polio vaccinations and urged the public to get shots as they investigated whether a known case of polio had spread to others.

'Silent' spread of polio in New York drives CDC to consider additional vaccinations for some people

Single polio case in New York may be 'very, very tip of the iceberg,' CDC official says

Ashton Kutcher arrives at the premiere of "Vengeance," Monday, July 25, 2022, at Ace Hotel Downtown Los Angeles. (Photo by Jordan Strauss/Invision/AP)

What is the rare disease that left Ashton Kutcher unable to hear, see and walk?

A healthcare worker administers a dose of the Pfizer-BioNTech Covid-19 vaccine at a vaccination clinic in the Peabody Institute Library in Peabody, Massachusetts, U.S., on Wednesday, Jan. 26, 2022. The state's Covid-19 numbers are improving to the point Massachusetts residents, especially those who are fully vaccinated and boosted, could see significantly lower risk from the coronavirus, according to Tufts Medical Center.

Under 60, healthy, vaccinated and boosted? 'You're in a pretty good place' with Covid-19

A nurse ties a tourniquet before taking blood at the Temple Fortune Health Centre GP Practice near Golders Green, London.

Some lab techs refuse to take blood from possible monkeypox patients, raising concerns about stigma and testing delays