So I've been thinking about what we don't yet know about the virus that has the potential to significantly impact us in the future.

Seems like there's a lot of pretty basic information we're lacking. We know a lot about the virus but exactly how it works is still pretty murky. That makes development and implementation of a strategy for moving forward even more difficult.

Reports from South Korea and Italy seem to have identified people that tested positive, then negative, then positive again.

Do we know the percentage of test results that are inaccurate, either in the positive or the negative direction? Is it possible these people are being re-infected or that the virus is reactivating?

What percentage of the total population has been exposed?

What immunity, if any, is conferred by being exposed to the virus and testing positive?

We've been dealing with influenza for a heck of a long time and still haven't managed to come up with a vaccine that's consistently effective from year to year, much less a universal flu vaccine that confers years of (or lifetime) immunity. Will we run into the same obstacles with this virus?

What other gotchas are facing those planning how to let people start leaving their homes and getting back to a more normal life?

Whatever "normal" means moving forward....

We also don't know the rate of infection.

Or how many people are really dying of the virus. At least initially, some counts haven't included people who died of the virus in a nursing home or at home, never having made it to a hospital.

Add to your list of,questions:

How long would immunity last?

Can they develop a vaccine to address all the different strains?

Will the mutation rate of the virus change?