To be effective from Friday night, the ban followed declaration of an unprecedented human biosecurity emergency on Wednesday.
Australian citizens will be able to return, but will be subject to a mandatory 14-day self-isolation.
According to the Department of Health of the Australian government, there have been 565 confirmed cases of COVID-19 as of 6:30 a.m. local time Thursday, a 24 percent increase from the day before.
Of those cases, 259, or 45 percent, were considered to be overseas acquired.
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