Asian markets fluctuated Thursday after rallying for much of the week, with any gains dragged by profit-taking while concerns over the long-term impact of the virus and worsening China-US relations added to the selling pressure.
Equities have enjoyed weeks of gains thanks to signs of an easing in the disease in major economies and the gradual lifting of lockdown measures that are expected to have sent the world into a deep recession.
But that optimism has been tempered by uncertainty about the future, while Donald Trump has continued to target China over the outbreak and threatened fresh tariffs on the country, fuelling worries of another painful trade war between the superpowers.
In his latest volley, on Wednesday night he tweeted that "It was the 'incompetence of China', and nothing else, that did this mass Worldwide killing".
He later accused counterpart Xi Jinping of being behind a "disinformation and propaganda attack on the United States and Europe".
He added: "It all comes from the top", adding that China was "desperate" to have former vice president Joe Biden win November's presidential election.
Stephen Innes, of AxiCorp, warned that investors might not be taking the simmering tensions seriously enough.
"Markets may be pricing in far too much complacency as the US-China 'phase one' trade deal could be at risk, as the pandemic and resulting acute economic downturn have made China's trade commitment to the US much more challenging to fulfil," he said in a note.
Minutes from the Federal Reserve highlighted its concerns about the impact of the outbreak.
Policymakers were worried that "even after social-distancing requirements were eased, some business models may no longer be economically viable".
This would be the case especially if consumers decide to "avoid participating in particular forms of economic activity", the minutes said.
Europe back in the air?
The World Health Organization said 106,662 virus cases were reported Tuesday, the biggest daily jump since the disease broke out in December, with Latin America now of particular concern.
In early trade, Hong Kong and Shanghai were in negative territory, Tokyo finished the morning slightly lower, while Wellington and Singapore also dropped.
Sydney rose 0.2 percent, while there were also small gains in Seoul, Taipei, and Manila.
But while uncertainty reigns, traders continue to take heart from the good news, with European Union tourism ministers holding a virtual meeting, while Greece unveiled plans to let seasonal hotels reopen from June 15 and international flights resume on July 1.
And Italian airports were given the go-ahead to reopen from June 3, including for international flights.
Meanwhile, researchers reported progress from a study involving monkeys that looked at a prototype vaccine and another on whether infection with COVID-19 provides immunity against re-exposure.
That came days after US firm Moderna said early tests of a possible vaccine had been successful.
"Rollback continues to support risk sentiment with markets optimistic that economic activity will rebound sharply," said National Australia Bank's Tapas Strickland.
"Vaccine hopes also continue… The developments again reinforce for markets it’s a matter of when, rather than if for a vaccine."
Key figures around 0230 GMT
Tokyo – Nikkei 225: DOWN 0.1 percent at 20,583.95 (break)
Hong Kong – Hang Seng: DOWN 0.4 percent at 29,293.91
Shanghai – Composite: FLAT at 2,883.23
West Texas Intermediate: UP 0.2 percent at $33.55 per barrel
Brent North Sea crude: UP 0.4 percent at $35.90 per barrel
Euro/dollar: DOWN at $1.0958 from $1.0983 at 2050 GMT
Dollar/yen: UP at 107.65 yen from 107.55 yen
Pound/dollar: DOWN at $1.2196 from $1.2233
Euro/pound: UP at 89.85 pence from 89.74 pence
New York – Dow: UP 1.5 percent at 24,575.90 (close)
London – FTSE 100: UP 1.1 percent at 6,067.16 (close)
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