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  • Elizabeth Cohen
    Senior Medical Correspondent

    Elizabeth Cohen is senior medical correspondent for CNN's Health, Medical and Wellness unit, reporting breaking medical news and health consumer reporting on CNN and CNN.com.

    Full Bio

People sit in their vehicles while waiting in line to enter a Covid-19 drive-thru testing site at Hard Rock Stadium in Miami Gardens, Florida, U.S., on Tuesday, June 30, 2020. Anthony Fauci, the federal government's top infectious disease specialist, said hes quite concerned about the spike in cases in Florida, Texas, Arizona and California. Photographer: Marco Bello/Bloomberg via Getty Images

As Florida sets records for Covid-19 cases, health authorities often fail to do contact tracing

Momo

Pill could make your dog live longer (2016)

Director of the National Institute for Allergy and Infectious Diseases Dr. Anthony Fauci testifies before the US Senate Health, Education, Labor, and Pensions Committee hearing to examine COVID-19, "focusing on lessons learned to prepare for the next pandemic", on Capitol Hill in Washington, DC on June 23, 2020. (Photo by KEVIN DIETSCH / POOL / AFP) (Photo by KEVIN DIETSCH/POOL/AFP via Getty Images)

Fauci says Covid-19 vaccine may not get US to herd immunity if too many people refuse to get it