With coronavirus spreading, heaps of people are wondering if getting a flu shot earlier this year is worth it.
And as more people need tests, how do the swabs work and how long does it take?
On the show today:
* How long does testing for coronavirus take?
* Flu shot season is rapidly approaching, so should you get one earlier than usual? How will it help?
* Can you start infecting other people with coronavirus before you start showing symptoms?
* What happens to people who have weak immune systems?
And you might have seen the study which indicated coronavirus had mutated. But has it really? Dr Norman Swan explains.