How did Australia lose its grip on covid-19 and can it get it back?

Australia was close to eliminating covid-19 but is now experiencing a large outbreak that spread from hotels, which are being used to quarantine returning travellers

Source:
https://www.newscientist.com/article/2249150-how-did-australia-lose-its-grip-on-covid-19-and-can-it-get-it-back/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home