It's been 11 months since a big COVID-19 outbreak in Melbourne threw the city into lockdown.

Now, the virus is again spreading in the city's suburbs, with new cases in the west and north.

So have we got better at treating patients with COVID?

Today on The Signal, we take stock of how COVID-19 treatments have evolved over time.

We ask what hurdles remain, and what new options might be on the way.

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Tegan Taylor, ABC Health and Science Reporter and Co-host, ABC Coronacast