Monkeypox is spreading globally for the first time, in an outbreak that has caught health officials off-guard.
Eleven countries including Australia have now detected the tropical virus, which is usually only spotted within Africa.
Two men from Sydney and Melbourne have both returned from Europe infected with the rare tropical disease.
The Victorian case is known to have been in the UK where there are currently 20 cases, which are all among men from the gay and bisexual community.
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