Dr. Anthony Fauci Quarantining After "Low-Risk" Contact With COVID-19

Dr. Fauci, after a low-risk contact with a COVID-19 positive White House staffer, tested negative and will telework for two weeks. Similarly, CDC Director Robert Redfield and FDA Commissioner Stephen Hahn, after low-risk exposures, will also self-quarantine. Despite this, Redfield and Hahn will testify via videoconference before a Senate committee, while Fauci is expected to appear in person.

What was the outcome of Stephen Hahn's COVID-19 test?

How will Dr. Redfield and Dr. Hahn participate in the Senate committee meeting?