Health
In February, experts thought masks were unsafe. Here’s what they’ve learnt about COVID-19 – Sydney Morning Herald
When COVID-19 emerged, doctors knew almost nothing about how it spread, what it did to people or how to treat it.
“I think we got the care right,” said Jason Trubiano, head of the COVID-19 unit at Austin Health. “I really do.”
In February experts thought: COVID-19 is transmitted by coughing and sneezing and touching infected surfaces. Masks dont work.
Now experts think: In certain circumstances, the virus can spread in indoor air. There is debate about surfaces. Masks work.
The advice from the federal government has stayed the same throughout the pandemic: the biggest risk of catching COVID-19 comes from close…
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