Hundreds are feared to have contracted coronavirus as 10 backpackers tested positive for the virus after attending a party on Bondi Beach.
Florencia Barreiro revealed herself and nine pals have all contracted the infection which has placed the world on lockdown.
The 24-year-old said up to 200 people were at the party two weeks ago, which was held before all outdoor gatherings were banned in Australia over coronavirus.
She revealed not long after the party she began to suffer symptoms, including body aches and a congested nose.
Ms Barreiro, from Argentina, was then tested positive at the Prince Wales Hospital in Randwick.
She lives with 12 other backpackers and was rushed away by government officials to be isolated in a hotel.
Desperately, she is now urging everyone to self isolate as she fears tourists, backpackers and locals are not taking the pandemic seriously.
Ms Barreiro told 10Daily: “We were not worried. We were unconscious of it, as people still are now I guess.
“We saw it as something distant from us. Nobody was mentioning it anywhere.
“I started to realise the situation three days after the party.”
Large gatherings in Australia prompted the government to roll out stricter rules that led to many beaches being shut down.
Ms Barreiro said: “I started feeling really weak [and had] body pain and headaches. But I never got a temperature nor sore throat.”
She is now holed up for two weeks in a hotel, and said that at least nine other friends – also backpackers from Argentina and Chile – are also infected with coronavirus.