All member nations of the World Health Organization (WHO) should support a proposed independent review into the coronavirus pandemic, Australia's Prime Minister Scott Morrison said, further threatening strained ties with China.

Photo: Gary Ramage / POOL / AFP

Australia has become as one of Beijing's most forceful critics over the handling of the spread of the coronavirus, with Morrison urging several world leaders to support an international inquiry into its origins and spread.

Beijing has fiercely rejected calls for an inquiry, describing the efforts as US-led propaganda against China.

But Morrison said all members of the WHO should be obliged to participate in a review.

"If you're going to be a member of a club like the World Health Organization, there should be responsibilities and obligations attached to that," Morrison told reporters in Canberra.

"We'd like the world to be safer when it comes to viruses... I would hope that any other nation, be it China or anyone else, would share that objective."

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The Covid-19 outbreak has since spread to infect some 2.3 million people globally and killed nearly 160,000, according to Reuters calculations.

China is Australia's largest trading partner, but diplomatic ties have frayed in recent years amid allegations Beijing has committed cyber-attacks and has attempted to interfere in Canberra's domestic affairs.

Australia's calls for an inquiry will win favour with the White House - which has been critical of China and the World Health Organisation's handling of the pandemic, and has withdrawn US funding from the UN agency.

Both France and Britain have said now was the time to fight the virus, not to apportion blame.

Morrison's comments came just hours after a senior Australian government official called on G20 nations to end wildlife wet markets over concerns they pose a threat to human health and agricultural markets.

The pandemic which originated in China was thought to have started in a wet market in the city of Wuhan. Wet markets are a key facet of China's daily life, though not all sell wildlife.

China imposed a temporary ban on selling wildlife on 23 January and is now reviewing its legislation to restrict commercial wild animal trading on a permanent basis.

Minister for Agriculture David Littleproud said he had asked government officials from the Group of 20 major economies to back a plan to end wildlife wet markets.

"There are risks with wildlife wet markets and they could be as big a risk to our agricultural industries as they can be to public health," Littleproud told Australia's Channel 7 television.

US officials have also called for wildlife wet markets across Asia to be closed. Wet markets exist throughout Asia selling fresh vegetables, seafood and meat, with some also selling exotic animals.

Australia's call for global action comes as it successfully slows the spread of coronavirus, with new infections well below 1 percent a day. Australia has about 6600 cases of coronavirus nationally and 75 deaths from the virus.

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