You might have heard that Dr Norman Swan has come down with a bit of an illness.

Yesterday he was checked for coronavirus, and had to use his doctor skills and do the swab on himself.

So, what is getting tested for coronavirus like?

On today's show:

* Dr Norman Swan explains how the coronavirus test is done

* Why don't the authorities give us better data on where positive cases are found?

* Is it okay to mail packages and cards/letters to loved ones in the hospital or nursing homes?

* You talk about getting high and low doses of the virus. What do you mean by that?

* Does taking supplements like horseradish and garlic help?