Thursday's vote to hold Dr. Anthony Fauci in contempt of Congress follows years of tension with GOP Sen. Rand Paul, hinging on the origins of the coronavirus and a controversial type of research.

Ashish Jha says he now believes COVID-19 likely originated from a lab leak at the Wuhan Institute of Virology, reversing his earlier position.

Previously, the COVID-19 immunizations made by Pfizer and Moderna were the only mRNA vaccines on the market.

Reactivation of typically harmless anelloviruses, in particular, seems to be linked with developing long COVID, study finds.

The subpoena seeks documents on Anthony Fauci's book deals, awards and alleged self-dealing tied to COVID-19 guidance that impacted Florida businesses.

In the journal Nature, the team, led by researchers at the University of Texas at Austin, found that infection with the coronavirus that causes COVID can apparently reactivate other viruses that had been dormant in their bodies.

Here’s what we’ve learned – and how our understanding has evolved – since the earliest cases of the novel coronavirus were first reported.

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Certain areas are seeing a notable increase.