AAP Newswire

Australia is mapping out the path back to work, with businesses forced to prove they can operate safely amid the coronavirus pandemic.

The World Health Organisation says comments by the US secretary of state citing evidence the new coronavirus emerged from a Chinese lab are "speculative".

US President Donald Trump has talked up the way Australian and US scientists are working together to come up with a coronavirus vaccine.

Global coronavirus deaths have reached 250,000 but restrictions in many countries are gradually easing in a bid to stimulate economic growth.

World leaders have tuned into a European Union pledge marathon overnight to raise money to develop a coronavirus vaccine, with Australia pledging $352 million.

Queensland is considering a further easing of coronavirus restrictions, including reopening schools, after it again recorded zero new cases overnight.

Four more residents have died from COVID-19 at Newmarch House aged care facility in Sydney's west taking the home's total to 11 deaths.

The Queensland government will spend $28 million in a new fund to help those suffering with mental health issues during the COVID-19 pandemic.

Three men - including an alleged motorcycle gang member - have been charged after more than $1.65 million worth of cannabis was seized in central western NSW.

Any relaxing of the restrictions in place to curb the spread of coronavirus in Australia is still many weeks away, the prime minister says.