The immediate and long term health effects of COVID-19 have been well reported over the past several months, but it may have crowded out other illnesses and diseases.

According to the Federal Government's national cancer agency Cancer Australia, treatments and tests for the most common types of cancer have plummeted since the pandemic began.

It's raised concerns that because people might have been unable or avoided going to the doctor during lockdown, they could be living with undiagnosed and untreated cancer.

On today's show:

* What's happened to cancer diagnosis over the past six months?

* How did Norman get sick again? What's he been doing? Has he been washing his hands?

* You've mentioned that the coronavirus is mutating. Can you tell me more about that?