COVID-19 FAQs

We update these FAQs regularly but are not posting daily updates to rapidly developing information. For frequent and timely updates on emerging data, we recommend Dear Pandemic and Your Local Epidemiologist.

What is COVID-19?

How does COVID-19 spread?

Who is at high-risk for COVID-19?

Do masks slow the spread of COVID-19?

Diagnostic COVID Testing

Immunity and Herd Immunity

Will a COVID vaccine be safe and effective?