1. Will the outbreak end during the summer?
Dr. Leana Wen, the former Baltimore Health Commissioner, echoed what many experts have said at the town hall: we just don't know yet.
2. If you had the coronavirus and recovered, can you still can still transmit the disease?
Just because someone who had the coronavirus is feeling better does not mean they can't spread the disease, said Dr. Anthony Fauci, the US's top infectious disease doctor and the director of the National Institute of Allergy and Infectious Diseases.
"You can become infected, get symptomatic, resolve the symptoms, feel well, and still share the virus. You can go back to your normal life when you have two consecutive tests for the coronavirus that are negative, separated by 24 hours. That is an excellent question. Just because you feel better or feel well does not mean you are not sharing the virus," Fauci said.
3. If you get the coronavirus once, can you contract it again?
The answer to that is not yet clear, according to Dr. Maria Van Kerkhove, an infectious diseases epidemiologist with the World Health Organization.
"Studies are ongoing now. Across a number of countries. We'll have to get back to you on that," she said.
4. Should you travel?
Fauci said he "certainly wouldn't get on a plane for a pleasure trip. It would have to be something that was really urgent."
"I'm a pretty healthy guy for 79," Fauci said. "If it (the trip) had to do with the public health and I needed to do something for the public health, I might do that because I'm quite healthy. However, if it was just for fun -- no way I would do it."
And here's the CDC's latest coronavirus advice for travelers
5. What does the Trump administration's latest travel ban mean for me?
The restrictions will ban travel to the US from 26 European countries -- a group in Europe called the Schengen Area -- Austria, Belgium, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden and Switzerland.
The ban will be in effect for anyone who is transiting through the listed countries, not just arriving from them, according to CNN correspondent Richard Quest -- meaning, for instance, someone in Paris could not travel to London and then go to the US.
The ban does not apply to US citizens in Europe. They are allowed to return, but the procedure is not exactly clear. They will need to go to designated airports to fly back. It's unclear whether they will have to immediately self-isolate once they arrive, or whether that may only apply to symptomatic people.