There are a lot of conspiracy theories out there about the origins of coronvirus — was it invented by the US military? The US Democrats? Maybe even by aliens?

Well... no. And the real answer will not surprise you (hint: it arose in Wuhan).

Coronacast is a daily podcast that's all about answering your coronavirus questions.

In today's episode:

* Where did coronavirus come from?

* Should you pull your kid out of school?

* How do you navigate social distancing in a share house?

* What is contact tracing and how does it work?

And Dr Norman Swan talks about a study which finds most COVID-19 infections in Wuhan were going under the radar — so what does that mean for us in Australia?

If you want to send in a question, go to abc.net.au/coronavirus and we might answer it tomorrow on the podcast.