Fox News senior medical analyst Dr. Marc Siegel joins 'Fox & Friends' to discuss the CIA's COVID lab leak theory gaining traction and RFK Jr.'s  confirmation hearing for HHS.

China on Monday dismissed the lab leak theory on COVID-19 origins proposed by the CIA, calling it baseless and emphasizing ...

The Microsoft co-founder said he believes there is a 10-15 percent chance of a natural pandemic hitting in the next four years.

Good morning, Chicago. It was around 8 a.m. Sunday when a family friend called Maria to ask why her husband of nearly 10 years hadn’t shown up for work. Minutes later, with federal immigration agents ...