A professor of intensive care at the University College in London has warned Australians "you will have blood on your hands" if you fail to self-isolate and spread the disease.
Speaking on ABC's 7.30 program, Professor Hugh Montgomery said the "massive rise" in confirmed cases in Australia will be followed "sometimes six to 10 days down the pipeline by the same exponential rise in hospital cases and intensive care cases. We're hitting that about now."
Mr Montgomery said according to the UK's Department of Health, London is set to run out of intensive care beds in two days.
When asked what was his best advice for Australians, he pointed to social distancing measures and criticised the British public for "picnicking" and "partying".
"For most people they won't even notice they've got it. If they do get it, it won't be bad. But this isn't about you. It's about other people," he said.
"If you spread this and you spread it three times without even knowing you're doing it, 10 cycles later you have been responsible potentially for 7,000 hospitalised cases and you will have blood on your hands.
"So, please, please, please, heed the advice your government is giving you. Stay at home. If you have to go out, stay 2m away from everyone else.
"This is droplet spread. Very, very hard to catch at a greater distance than that. Wash your hands before you leave in case you're an asymptomatic carrier, wash your hands when you come back in and do it rigorously all the time.
"This will be hard, but if you do this you can, as we talk about, flatten the curve. This is about turning a tsunami into a long, slow roar.
"The same number of people may get infected but if the tsunami doesn't happen, your health services have a much better chance to cope. If they can't cope, they can't help you survive and you get critically ill."